TY  - RPRT
TI  - Helium soil gas survey of a collapse feature on the Hualapai Indian Reservation, Arizona
AU  - G.M. Reimer
PY  - 1985
DO  - 10.3133/ofr85394
UR  - https://pubs.usgs.gov/publication/ofr85394
ID  - ofr85394
ER  -