The development of geological studies in the Grand Canyon /
| Egile nagusia: | |
|---|---|
| Egile korporatiboa: | , |
| Formatua: | Conference Proceeding Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Philadelphia :
Dept. of Malacology, Academy of Natural Sciences of Philadelphia,
[1989]
|
| Saila: | Tryonia ;
no. 17. Contribution of the Invertebrate Paleontology Section ; 1. |
| Gaiak: |