Cita APA

Johnson, S. R., & Johnson, R. B. (1971). Developing individualized instructional material: A self-instructional material in itself ([1st ed.].). Westinghouse Learning Press.

Citación estilo Chicago

Johnson, Stuart R., and Rita B. Johnson. Developing Individualized Instructional Material: A Self-instructional Material in Itself. [1st ed.]. Palo Alto, Calif.: Westinghouse Learning Press, 1971.

Cita MLA

Johnson, Stuart R., and Rita B. Johnson. Developing Individualized Instructional Material: A Self-instructional Material in Itself. [1st ed.]. Westinghouse Learning Press, 1971.