Cratty, B. J. (1971). Active learning: Games to enhance academic abilities. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Cratty, Bryant J. Active Learning: Games to Enhance Academic Abilities. Englewood Cliffs, N. J: Prentice-Hall, 1971.
Citatione MLA (9a ed.)Cratty, Bryant J. Active Learning: Games to Enhance Academic Abilities. Prentice-Hall, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.