Cita APA

Espich, J. E., & Williams, B. (1967). Developing programmed instructional materials: A handbook for program writers. Belmont, California: Fearon Lear Siegler Education División.

Citación estilo Chicago

Espich, James E., y Bill Williams. Developing Programmed Instructional Materials: A Handbook for Program Writers. Belmont, California: Fearon Lear Siegler Education División, 1967.

Cita MLA

Espich, James E., y Bill Williams. Developing Programmed Instructional Materials: A Handbook for Program Writers. Belmont, California: Fearon Lear Siegler Education División, 1967.