TY  - BOOK
AU  - Deauna,Melacio C.
TI  - Environmental science for Philippine schools: textbook 
SN  - 9710619985
AV  - QH 51  .D49 1999
PY  - 1996///
CY  - Quezon City
PB  - Phoenix Pub. House
KW  - Environmental sciences
KW  - Study and teaching
N1  - Includes glossary, references and index
ER  -