TY  - BOOK
AU  - Unday, Joel E. 
AU  - 
AU  - 
AU  - 
TI  - Introduction to environmental science
SN  - 9780710167067
U1  - Fil. 363.7 In61 2012 Revised edition
PY  - 2012///
CY  - Quezon City : 
PB  -  Maxor Publishing House Inc.
KW  - 1. Invironment Sciences. I. Banzuela, Shirley O. II. Dalisay, Jill B. III. Aromin, Mayette L.
N1  - Includes a glossary and references
ER  -