Παραπομπή σε μορφή APA (7η εκδ.)

Cruz, R. (1997). Watershed management and food security in the Philippines: Policy issues and concerns. Center for Policy and Development Studies, University of the Philippines at Los Baños.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cruz, R.V.O. Watershed Management and Food Security in the Philippines: Policy Issues and Concerns. College, Laguna: Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cruz, R.V.O. Watershed Management and Food Security in the Philippines: Policy Issues and Concerns. Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.