Cita APA (7a ed.)

(1967). Developing programmed instructional materials ; a handbook for program writers / [by] James E. Espich & Bill Williams.

Cita Chicago Style (17a ed.)

Developing Programmed Instructional Materials ; a Handbook for Program Writers / [by] James E. Espich & Bill Williams. 1967.

Cita MLA (9a ed.)

Developing Programmed Instructional Materials ; a Handbook for Program Writers / [by] James E. Espich & Bill Williams. 1967.