TY  - RPRT
TI  - Steps to the moon
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
AU  - Alvin E. Dale
PY  - 1976
DO  - 10.3133/70039210
UR  - https://pubs.usgs.gov/publication/70039210
ID  - 70039210
ER  -