De Kieffer, R. E., & Cochran, L. W. (1962). Manual of audio-visual techniques (2d ed.). Prentice-Hall.
Chicago Style aipamenaDe Kieffer, Robert E., and Lee W. Cochran. Manual of Audio-visual Techniques. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1962.
MLA aipamenaDe Kieffer, Robert E., and Lee W. Cochran. Manual of Audio-visual Techniques. 2d ed. Prentice-Hall, 1962.
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