Cita APA (7th ed.)
Lysaugth, J. P., & Williams, C. M. (1966). A guide to programmed instruction.
Cita Chicago (17th ed.)
Lysaugth, Jerome P., i Clarence M. Williams. A Guide to Programmed Instruction. 1966.
Cita MLA (9th ed.)
Lysaugth, Jerome P., i Clarence M. Williams. A Guide to Programmed Instruction. 1966.
Atenció: Aquestes cites poden no estar 100% correctes.