Cita APA (7th ed.)
O'day, E. F., & Maccorquodale, K. (1971). Programmed instruction: Techniques and trends.
Cita Chicago (17th ed.)
O'day, Edward F., i Kenneth Maccorquodale. Programmed Instruction: Techniques and Trends. 1971.
Cita MLA (9th ed.)
O'day, Edward F., i Kenneth Maccorquodale. Programmed Instruction: Techniques and Trends. 1971.
Atenció: Aquestes cites poden no estar 100% correctes.