Cay, M. B., Hidalgo, N. P., & Castillo, J. B. (1979). Audio-visual materials and services at the University of the Philippines.
Citace podle Chicago (17th ed.)Cay, Marinella B., Namnama P. Hidalgo, a 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.
Citace podle MLA (9th ed.)Cay, Marinella B., et al. Audio-visual Materials and Services at the University of the Philippines. 1979.
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