APA (7th ed.) Citation

Fry, E. B. (1963). Teaching machines and programmed instruction: An introduction. McGraw-Hill.

Chicago Style (17th ed.) Citation

Fry, Edward Bernard. Teaching Machines and Programmed Instruction: An Introduction. New York [u.a.]: McGraw-Hill, 1963.

MLA (9th ed.) Citation

Fry, Edward Bernard. Teaching Machines and Programmed Instruction: An Introduction. McGraw-Hill, 1963.