APA (7e ed.) Bronvermelding

Population, Resources, Environment and the Philippine Future, Development Academy of the Philippines, University of the Philippines (Diliman). School of Economics, & University of the Philippines (Manila). Population Institute. (1980). Probing our futures: The Philippines 2000 A.D. PREPF.

Chicago (17e ed.) Bronvermelding

Population, Resources, Environment and the Philippine Future, Development Academy of the Philippines, University of the Philippines (Diliman). School of Economics, en University of the Philippines (Manila). Population Institute. Probing Our Futures: The Philippines 2000 A.D. Metro Manila: PREPF, 1980.

MLA (9e ed.) Bronvermelding

Population, Resources, Environment and the Philippine Future, et al. Probing Our Futures: The Philippines 2000 A.D. PREPF, 1980.