TY  - BOOK
AU  - Joel E. Unday
AU  - Renalyn J. Valdez
TI  - Ecology and environment
SN  - 978-621-409-341-0
U1  - 574.5 
PY  - 2025///
CY  - Quezon City
PB  - Books Atbp.
KW  - Ecology
KW  - Environment
ER  -