APA (7th ed.) Citation

Haas, K. B., & Packer, H. Q. (1950). Preparation and use of audio-visual aids (Rev. and enl. ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Haas, Kenneth Brooks, and Harry Q. Packer. Preparation and Use of Audio-visual Aids. Rev. and enl. ed. New York: Prentice-Hall, 1950.

MLA (8th ed.) Citation

Haas, Kenneth Brooks, and Harry Q. Packer. Preparation and Use of Audio-visual Aids. Rev. and enl. ed. Prentice-Hall, 1950.