Cohen, L., & Manion, L. (1989). A guide to teaching practice (3rd ed.). Routledge.
Cita Chicago Style (17a ed.)Cohen, Louis, y Lawrence Manion. A Guide to Teaching Practice. 3rd ed. London: Routledge, 1989.
Cita MLA (9a ed.)Cohen, Louis, y Lawrence Manion. A Guide to Teaching Practice. 3rd ed. Routledge, 1989.
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