Author

Shrock, Robert R.

Catalogue records by Shrock, Robert R. in the PakCat Union Catalogue.

6 catalogue records

Catalogue records

Invertebrate paleontology Shrock, Robert R. 1935 Principles of invertebrate paleontologly Shrock, Robert R. 1953 Principles of invertebrate paleontology Twenhofel, William H. 1953 Principles of invertebrate paleontology Shrock, Robert R. 1953 Sequence in layered rocks Shrock, Robert R. 1948 Sequence in layered rocks Shrock, Robert R. 1948