Block, J. H. (1974). Schools, society, and mastery learning. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Block, James H. Schools, Society, and Mastery Learning. New York: Holt, Rinehart and Winston, 1974.
Lua MLA (8ú heag.)Block, James H. Schools, Society, and Mastery Learning. Holt, Rinehart and Winston, 1974.
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