APA (7th ed.) Citation

Kapfer, P. G., & Kapfer, M. B. (1972). Learning packages in American education. Educational Technology Publications.

Chicago Style (17th ed.) Citation

Kapfer, Philip G., and Miriam B. Kapfer. Learning Packages in American Education. Englewood Cliffs, N.J.: Educational Technology Publications, 1972.

MLA (9th ed.) Citation

Kapfer, Philip G., and Miriam B. Kapfer. Learning Packages in American Education. Educational Technology Publications, 1972.