Marathon Basin, Brewster and Pecos Counties, Trans-Pecos Texas.
Series: Guidebook 1952 spring field trip
Published: 1952
Place of publication: [El Paso?]
Language: eng
Number of pages: 78
Subjects: Geology -- Trans-Pecos (Tex. and N.M.) -- Guidebooks.
Genres: Guidebooks.
Notes: Cover title.

Bibliography: p. 74-78.