Roberts, A. D. (1975). Educational innovation: Alternatives in curriculum and instruction. Allyn and Bacon.
Cita Chicago (17th ed.)Roberts, Arthur D. Educational Innovation: Alternatives in Curriculum and Instruction. Boston: Allyn and Bacon, 1975.
Cita MLA (8th ed.)Roberts, Arthur D. Educational Innovation: Alternatives in Curriculum and Instruction. Allyn and Bacon, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.