TY  - BOOK
ED  - Guidebook for the 1983 Field Conference El Paso Geological Society (1983 : EUA)
TI  - Geology and mineral resource of north central of Chihuahua
U1  - 557.216 
PY  - 1983///
CY  - EUA
PB  - El Paso Geological Society
KW  - Geología
KW  - Chihuahua (México)
ER  -