TY  - BOOK
AU  - Ramsey, William L.
AU  - Burckley, Raymond A.
TI  - Modern Earth Science
SN  - 9718558065
U1  - GS Res 550 R472 1965 
PY  - 1961///
CY  -  Quezon City
PB  - HOLT RINEHEART AND WINSTON,INC
N1  - Index
ER  -