APA aipamena

Haas, K. B., & Packer, H. Q. (1955). Preparation and use of audio-visual aids (3d ed.). Prentice-Hall.

Chicago Style aipamena

Haas, Kenneth B., and Harry Q. Packer. Preparation and Use of Audio-visual Aids. 3d ed. New York: Prentice-Hall, 1955.

MLA aipamena

Haas, Kenneth B., and Harry Q. Packer. Preparation and Use of Audio-visual Aids. 3d ed. Prentice-Hall, 1955.