TY  - BOOK
AU  - Trowbridge,Arthur C.
TI  - Tertiary and Quaternary geology of the lower Rio Grande region, Texas,
T2  - U.S. Geological survey. Bulletin 837
AV  - QE75 .B9 no. 837
PY  - 1932///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Geology
KW  - Texas
KW  - Geology, Stratigraphic
KW  - Tertiary
KW  - Quaternary
N1  - At head of title: United States Department of the Interior; Bibliographical foot-notes
ER  -