APA (7th ed.) Citation

Schaefer, F., & Chambers, I. (1975). Interactive audio-visual programming: The learning wall concept. Thomas.

Chicago Style (17th ed.) Citation

Schaefer, Florence, and Irene Chambers. Interactive Audio-visual Programming: The Learning Wall Concept. Springfield, Ill.: Thomas, 1975.

MLA (9th ed.) Citation

Schaefer, Florence, and Irene Chambers. Interactive Audio-visual Programming: The Learning Wall Concept. Thomas, 1975.