APA (7th ed.) Citation

McCarty, H. R., & Hartsell, H. C. (1959). The cooperative approach to audio-visual programs. s.n.

Chicago Style (17th ed.) Citation

McCarty, Henry R., and Horace C. Hartsell. The Cooperative Approach to Audio-visual Programs. [Washington: s.n, 1959.

MLA (9th ed.) Citation

McCarty, Henry R., and Horace C. Hartsell. The Cooperative Approach to Audio-visual Programs. s.n, 1959.