TY  - RPRT
TI  - Silica sand deposits in the Monrovia area, Liberia
AU  - Sam Rosenblum
AU  - S.P. Srivastava
PY  - 1970
DO  - 10.3133/ofr70280
UR  - https://pubs.usgs.gov/publication/ofr70280
ID  - ofr70280
ER  -