APA (7th ed.) Zitazioa

Verzosa, P. R. (1974). Trends in ethics [microform]. Photoduplication Service,University of the Philippines Library.

Chicago Style (17th ed.) Zitazioa

Verzosa, Paul Rodriquez. Trends in Ethics [microform]. Quezon City: Photoduplication Service,University of the Philippines Library, 1974.

MLA (9th ed.) Zitazioa

Verzosa, Paul Rodriquez. Trends in Ethics [microform]. Photoduplication Service,University of the Philippines Library, 1974.