Geological reconnaissance of parts of Grand, Jackson and Larimer counties, Colorado
By: by L. E. Spock, jr
Series: Contributions from the Department of geology of Columbia university -- vol. XL, no. 3; Contributions from the Dept. of Geology of Columbia University -- v. 40, no. 3
Published: 1928
Place of publication: New York]
Language: eng
Number of pages: 261
Subjects: Geology
Notes: Vita.

"Annals, N. Y. Acad. of sci., vol. XXX ... October 22, 1928."

Cover-title.

Thesis (Ph. D.)--Columbia university, 1929.

Bibliography: p. 260-261.