APA (7th ed.) Citation

Villanueva, T. R. (2005). Upland ecosystem management (2nd ed.). UP Open University.

Chicago Style (17th ed.) Citation

Villanueva, Teodoro R. Upland Ecosystem Management. 2nd ed. Diliman, Quezon City: UP Open University, 2005.

MLA (9th ed.) Citation

Villanueva, Teodoro R. Upland Ecosystem Management. 2nd ed. UP Open University, 2005.