TY  - RPRT
TI  - Location of pingos and pingolike mounds observed from the ground, from aerial reconnaissance, and on aerial photographs in interior Alaska
AU  - George William Holmes
PY  - 1967
DO  - 10.3133/ofr67115
UR  - https://pubs.usgs.gov/publication/ofr67115
ID  - ofr67115
ER  -