APA (7th ed.) Zitazioa
Haas, K. B., & Packer, H. Q. (1955). Preparation and use of audio-visual aids (3d ed.). Prentice-Hall.
Chicago Style (17th ed.) Zitazioa
Haas, Kenneth Brooks, eta Harry Q. Packer. Preparation and Use of Audio-visual Aids. 3d ed. New York: Prentice-Hall, 1955.
MLA (9th ed.) Zitazioa
Haas, Kenneth Brooks, eta Harry Q. Packer. Preparation and Use of Audio-visual Aids. 3d ed. Prentice-Hall, 1955.
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