TY  - BOOK
AU  - Realuyo, Zenaida
AU  - del Pan-Ilarde, Isabelina
TI  - Today's basic concepts in Earth Science
U1  - Fil. 550 R288 1982 
PY  - 1982///
CY  - Manila
PB  - Goodwill Trading Co., Inc.
KW  - Earth Science
N1  - Includes bibliography and index
ER  -