TY  - RPRT
TI  - Perlite deposit near Healy, Alaska
AU  - Clyde Wahrhaftig
AU  - Richard A. Eckhart
PY  - 1952
DO  - 10.3133/ofr169
UR  - https://pubs.usgs.gov/publication/ofr169
ID  - ofr169
ER  -