APA (7th ed.) Citation

Ploeg, J. v. d., Bernardo, E. C., & Masipiquena, A. B. (2003). The Sierra Madre mountain range: Global relevance, local realities. Cagayan Valley Program on Environment and Development, Isabela State University.

Chicago Style (17th ed.) Citation

Ploeg, Jan van der, Eileen C. Bernardo, and Andres B. Masipiquena. The Sierra Madre Mountain Range: Global Relevance, Local Realities. Isabela: Cagayan Valley Program on Environment and Development, Isabela State University, 2003.

MLA (9th ed.) Citation

Ploeg, Jan van der, et al. The Sierra Madre Mountain Range: Global Relevance, Local Realities. Cagayan Valley Program on Environment and Development, Isabela State University, 2003.