TY  - BOOK
AU  - Igadna, Keban Carlo B.
TI  - Instructional material in natural resources and environmental management
PY  - 2026///
CY  - [Bayombong, Nueva Vizcaya]
PB  - [Nueva Vizcaya State University]
KW  - Natural resources and energy
N1  - Includes bibliographical references
ER  -