Aihe-ehdotuksia
Aihe-ehdotuksia
Geology
661
Mines and mineral resources
223
Géologie
205
Geology, Stratigraphic
104
Petroleum
91
Natural gas
82
Coal mines and mining
53
lisää ...
1
Tekijä Willard, Bradford, 1894-1973
Harrisburg [Pa.] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1976
Harrisburg [Pa.] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1976
Hallinnon asiakirja
Kirja
2
Tekijä Ashley, Geo. H. (George Hall), 1866-1951
Harrisburg [Pa.] : Pennsylvania. Bureau of Topographic and Geologic Survey, 1922
2nd ed.
Harrisburg [Pa.] : Pennsylvania. Bureau of Topographic and Geologic Survey, 1922
2nd ed.
Hallinnon asiakirja
Kirja
3
Tekijä Sisler, James D. (James Donaldson), 1894-
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey, 1924
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey, 1924
Hallinnon asiakirja
Kirja
5
Tekijä Gray, Carlyle
Harrisburg, [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1958
Harrisburg, [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1958
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Kirja
6
Tekijä Ashley, Geo. H. (George Hall), 1866-1951
Harrisburg : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
Harrisburg : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1969
Hallinnon asiakirja
Kirja
7
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Aikakauslehti
8
Tekijä Socolow, Arthur A.
Harrisburg, Pa. : Pennsylvania Topographic and Geologic Survey, 1961
Harrisburg, Pa. : Pennsylvania Topographic and Geologic Survey, 1961
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Hallinnon asiakirja
Kirja
9
Tekijä MacLachlan, David B.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1975
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1975
Hallinnon asiakirja
Kirja
11
Tekijä Sisler, James D. (James Donaldson), 1894-
[Harrisburg] : Bureau of Topographic and Geological Survey, 1922
[Harrisburg] : Bureau of Topographic and Geological Survey, 1922
Kirja
12
Tekijä Willard, Bradford, 1894-
[Harrisburg] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geologic Survey, 1956
Third edition, revised.
[Harrisburg] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geologic Survey, 1956
Third edition, revised.
Kirja
13
Tekijä Ashley, Geo. H. (George Hall), 1866-1951
[Harrisburg] : Bureau of Topographic and Geological Survey, 1920
[Harrisburg] : Bureau of Topographic and Geological Survey, 1920
Kirja
15
Tekijä Shepps, Vincent C. (Vincent Chester), 1928-
[Harrisburg, PA] : Dept. of Internal Affairs, Topographic and Geologic Survey, 1959
[Harrisburg, PA] : Dept. of Internal Affairs, Topographic and Geologic Survey, 1959
Hallinnon asiakirja
Kirja
16
17
Tekijä Ashley, Geo. H. (George Hall), 1866-1951
[Harrisburg] : Bureau of Topographic and Geological Survey, 1922
Rev. May 25, 1922.
[Harrisburg] : Bureau of Topographic and Geological Survey, 1922
Rev. May 25, 1922.
Kirja
18
20
Tekijä Shaffner, Marchant N. (Marchant Nissley), 1897-
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, 1951
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, 1951
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Kirja