الموضوعات المستخلصة من بحثك.
الموضوعات المستخلصة من بحثك.
Coal mines and mining
Charbon
1,098
Mines et extraction
1,084
Safety measures
492
Environmental aspects
428
Coal
286
Sécurité
221
المزيد ...
1
بواسطة Puglio, D. G. (Donald G.)
Washington : U.S. Dept. of the Interior, Bureau of Mines, 1979
Washington : U.S. Dept. of the Interior, Bureau of Mines, 1979
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وثيقة رسمية
كتاب
2
بواسطة Adams, W. W. (William Waugh), 1884-1945
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
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وثيقة رسمية
كتاب
3
4
5
Washington : U.S. Govt. Print. Off., 1955
Rev.
Rev.
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كتاب
6
بواسطة Laskowski, Tadeusz
Warsaw : Centralny Instytut Informacji Naukowo-Technicznej i Ekonomicznej, 1962
Warsaw : Centralny Instytut Informacji Naukowo-Technicznej i Ekonomicznej, 1962
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كتاب
7
8
9
10
بواسطة Skema, Viktoras W.
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1982
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1982
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وثيقة رسمية
كتاب
11
12
بواسطة Ashmead, Dever C. (Dever Campbell), 1884-
[Harrisburg] : Dept. of Forests and Waters, Topographic and Geologic Survey 1926
[Harrisburg] : Dept. of Forests and Waters, Topographic and Geologic Survey 1926
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كتاب
13
14
15
بواسطة Chance, H. M. (Henry Martyn), 1856-1937
Harrisburg, Pa. : published by the Board of Commissioners for the Second Geological Survey, 1883
Harrisburg, Pa. : published by the Board of Commissioners for the Second Geological Survey, 1883
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كتاب
16
17
[New York] : A & E Television Networks, 2002
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غير معروف
18
بواسطة Saadoun, Sarah
[New York, N.Y.] : Human Rights Watch, 2018
[New York, N.Y.] : Human Rights Watch, 2018
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كتاب
19
بواسطة Thakur, Pramod
Kent : Elsevier Science & Technology, 2018
Kent : Elsevier Science & Technology, 2018
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كتاب
20
بواسطة Ilsley, L. C. (Lee Clyde), 1880-
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
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وثيقة رسمية
كتاب