Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.