TY  - RPRT
TI  - Tabulation of N 2 , O 2 , CO 2 , and He concentrations in soil gases collected on a regular basis for 11 months from a site at Tucson, Arizona
AU  - M. E. Hinkle
AU  - T. F. Harms
PY  - 1992
DO  - 10.3133/ofr92599
UR  - https://pubs.usgs.gov/publication/ofr92599
ID  - ofr92599
ER  -