TY  - BOOK
AU  - Ramsey, William L.--
AU  - Burckley, Raymond A.--
TI  - Modern earth science
SN  - 0173310715
U1  - Elem 550 R472 1965 
PY  - 1965///
CY  - Quezon City
PB  - Ken incorporated
KW  - Holt Earth science program
N1  - includes indexes
ER  -