APA (7th ed.) Citation

Manahan, G. V. (1997). Ecology, humans and the geography of the environment. Philippine Architects' Journal.

Chicago Style (17th ed.) Citation

Manahan, Geronimo V. "Ecology, Humans and the Geography of the Environment." Philippine Architects' Journal 1997.

MLA (9th ed.) Citation

Manahan, Geronimo V. "Ecology, Humans and the Geography of the Environment." Philippine Architects' Journal, 1997.