Cita APA (7a ed.)
O'Day, E. F. (1968). Programmed Instruction and How to Use It in Educational Applications. Prentice-Hall.
Cita estilo Chicago (17a ed.)
O'Day, Edward F. Programmed Instruction and How to Use It in Educational Applications. Englewood Cliffs, EUA: Prentice-Hall, 1968.
Cita MLA (9a ed.)
O'Day, Edward F. Programmed Instruction and How to Use It in Educational Applications. Prentice-Hall, 1968.
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