TY  - RPRT
TI  - Middle Paleozoic sedimentary phosphate in the Pensacola Mountains, Antarctica
AU  - J.B. Cathcart
AU  - D. L. Schmidt
PY  - 1977
DO  - 10.3133/pp456e
UR  - https://pubs.usgs.gov/publication/pp456E
ID  - pp456E
ER  -