The paleontology of the Zorritos formation of the north Peruvian oil fields
By: by Edmund M. Spieker ...
Publisher: The Johns Hopkins press
Published: 1922
Place of publication: Baltimore
Language: eng
Number of pages: 31
Subjects: Mollusks, Fossil -- Peru
Other titles: Zorritos formation of the North Peruvian oil fields.
Notes: Thesis (PH. D.)--Johns Hopkins university, 1921.
Cover-title.
Life.
"Abstract from the Johns Hopkins university studies in geology no. 3."