Cita APA (7th ed.)

Philippine Press Institute. (1971). Philippine mass media directory, 1971 (2nd ed.). [The Institute].

Cita Chicago (17th ed.)

Philippine Press Institute. Philippine Mass Media Directory, 1971. 2nd ed. Manila: [The Institute], 1971.

Cita MLA (9th ed.)

Philippine Press Institute. Philippine Mass Media Directory, 1971. 2nd ed. [The Institute], 1971.