APA (7e ed.) Bronvermelding

(1992). Forestry for people and nature: Field research and theory on environment and development in the Cagayan Valley, Philippines. Cagayan Valley Programme on Environment and Development, Isabela State University.

Chicago (17e ed.) Bronvermelding

Forestry for People and Nature: Field Research and Theory on Environment and Development in the Cagayan Valley, Philippines. Isabela: Cagayan Valley Programme on Environment and Development, Isabela State University, 1992.

MLA (9e ed.) Bronvermelding

Forestry for People and Nature: Field Research and Theory on Environment and Development in the Cagayan Valley, Philippines. Cagayan Valley Programme on Environment and Development, Isabela State University, 1992.