Haas, K. B., & Packer, H. Q. (1950). Preparation and use of audio-visual aids. Prentice-Hall.
Chicago Style (17th ed.) CitationHaas, Kenneth Brooks, and Harry Q. Packer. Preparation and Use of Audio-visual Aids. New York: Prentice-Hall, 1950.
MLA (9th ed.) CitationHaas, Kenneth Brooks, and Harry Q. Packer. Preparation and Use of Audio-visual Aids. Prentice-Hall, 1950.
Warning: These citations may not always be 100% accurate.