Cretaceous system in northern Peru.
Series: Bulletin of the American Museum of Natural History, v. 108, article 4; Bulletin of the American Museum of Natural History ;; v. 108, article 4.
Publisher: [American Museum of Natural History]
Published: 1956
Place of publication: New York
Language: eng
Number of pages: 493
Subjects: Geology, Stratigraphic -- Cretaceous.; Geology -- Peru.
Notes: Thesis--Columbia University.