Gaya APA

Sprinthall, N, A., Sprinthall, R, C. (1987). Educational Psychology : A Developmental Approach (edisi 4). New York: Award Record.

Gaya MLA

Sprinthall, Norman, A., Sprinthall, Richard, C. "Educational Psychology : A Developmental Approach". edisi 4 New York: Award Record, 1987. Text.