APA (7th ed.) Citation

Altarejos, J. A. (1974). An ecological study of a freshwater ecosystem [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17th ed.) Citation

Altarejos, Josefina A. An Ecological Study of a Freshwater Ecosystem [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.

MLA (9th ed.) Citation

Altarejos, Josefina A. An Ecological Study of a Freshwater Ecosystem [microform]. Photoduplication Service, University of the Philippines Library, 1974.