TY  - RPRT
TI  - Geology of the Paleozoic rocks, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah
AU  - J. H. Irwin
AU  - P. R. Stevens
AU  - M. E. Cooley
PY  - 1971
DO  - 10.3133/pp521c
UR  - https://pubs.usgs.gov/publication/pp521C
ID  - pp521C
ER  -