Sprinthall, N. A. (1993). Educational psychology: A developmental approach (6th.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Sprinthall, Norman A. Educational Psychology: A Developmental Approach. 6th. New York: McGraw-Hill, 1993.
Lua MLA (9ú heag.)Sprinthall, Norman A. Educational Psychology: A Developmental Approach. 6th. McGraw-Hill, 1993.
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