APA (7th ed.) Citation

Bird, . E. C. F., & Ongkosongo, O. S. R. (1980). Environmental changes on the coasts of Indonesia. United Nations University.

Chicago Style (17th ed.) Citation

Bird, Eric C. F., and Otto S. R. Ongkosongo. Environmental Changes on the Coasts of Indonesia. Tokyo: United Nations University, 1980.

MLA (9th ed.) Citation

Bird, Eric C. F., and Otto S. R. Ongkosongo. Environmental Changes on the Coasts of Indonesia. United Nations University, 1980.