TY  - BOOK
AU  - Ramsey,William L.
AU  - Burckley, Raymond A.
TI  - Modern earth science
AV  - QE 28 R1492 1966
PY  - 1966///]
CY  - Quezon City
PB  - Ken Incorporated
KW  - Earth science
N1  - Published and distributed in the Philippines; includes glossary and index
ER  -