TY  - RPRT
TI  - Geological and geophysical studies of the Navajo Nation: seminar
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1980
DO  - 10.3133/63
UR  - https://pubs.usgs.gov/publication/63
ID  - 63
ER  -