TY  - RPRT
TI  - Preliminary report on the ground-water resources of the Navajo and Hopi Indian Reservations, Arizona, New Mexico and Utah
AU  - Leonard Cameron Halpenny
AU  - John William Harshbarger
PY  - 1951
DO  - 10.3133/ofr51113
UR  - https://pubs.usgs.gov/publication/ofr51113
ID  - ofr51113
ER  -