Roberts, A. D. (1975). Educational innovation: Alternatives in curriculum and instruction. Allyn and Bacon.
Цитирование в стиле Чикаго (17-е изд.)Roberts, Arthur D. Educational Innovation: Alternatives in Curriculum and Instruction. Boston: Allyn and Bacon, 1975.
Цитирование MLA (8-е изд.)Roberts, Arthur D. Educational Innovation: Alternatives in Curriculum and Instruction. Allyn and Bacon, 1975.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.