TY  - RPRT
TI  - Geology and manganese deposits of Guisa-Los Negros area, Oriente Province, Cuba
AU  - W. P. Woodring
AU  - Steven Norman Daviess
PY  - 1944
DO  - 10.3133/b935g
UR  - https://pubs.usgs.gov/publication/b935G
ID  - b935G
ER  -