TY  - RPRT
TI  - Circum-Arctic map of permafrost and ground-ice conditions
AU  - J. Brown
AU  - O. J. Ferrians
AU  - J. A. Heginbottom
AU  - E. S. Melnikov
PY  - 1997
DO  - 10.3133/cp45
UR  - https://pubs.usgs.gov/publication/cp45
ID  - cp45
ER  -