(1969). Current research on instruction. Prentice-Hall.
Cita Chicago (17th ed.)Current Research on Instruction. Englewood Cliffs, N. J: Prentice-Hall, 1969.
Cita MLA (9th ed.)Current Research on Instruction. Prentice-Hall, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.