TY  - RPRT
TI  - Geology of the Bernal-Jalpan area, Estado de Queretaro, Mexico
AU  - Kenneth K. Segerstrom
PY  - 1961
DO  - 10.3133/b1104b
UR  - https://pubs.usgs.gov/publication/b1104B
ID  - b1104B
ER  -