The development of geological studies in the Grand Canyon /
| मुख्य लेखक: | |
|---|---|
| निगमित लेखकों: | , |
| स्वरूप: | सम्मेलन की कार्यवाही पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Philadelphia :
Dept. of Malacology, Academy of Natural Sciences of Philadelphia,
[1989]
|
| श्रृंखला: | Tryonia ;
no. 17. Contribution of the Invertebrate Paleontology Section ; 1. |
| विषय: |