TY  - STD
AU  - Brown, J.
AU  - Ferrians Jr., O. J.
AU  - Heginbottom, J. A.
AU  - Melnikov, E. S.
PY  - 1998, revised February 2001
DA  - 1998, revised February 2001//
TI  - Circum-arctic map of permafrost and ground ice conditions
PB  - National Snow and Ice Data Center. Digital media
CY  - Boulder, CO
ID  - Brown1998,revisedFebruary2001
ER  -