APA (7th ed.) Citation

Hernandez, R. F. (1968). Principles of psychology (Rev. ed.). U.S.T. Cooperative].

Chicago Style (17th ed.) Citation

Hernandez, Regina F. Principles of Psychology. Rev. ed. [Manila: U.S.T. Cooperative], 1968.

MLA (9th ed.) Citation

Hernandez, Regina F. Principles of Psychology. Rev. ed. U.S.T. Cooperative], 1968.