Cita APA (7th ed.)

Cay, M. B., Hidalgo, N. P., & Castillo, J. B. (1979). Audio-visual materials and services at the University of the Philippines.

Cita Chicago (17th ed.)

Cay, Marinella B., Namnama P. Hidalgo, i Jovito B. Castillo. Audio-visual Materials and Services at the University of the Philippines. Quezon City : Institute of Library Science, University of the Philippines Diliman, 1979.

Cita MLA (9th ed.)

Cay, Marinella B., et al. Audio-visual Materials and Services at the University of the Philippines. 1979.