Gaya APA

Ornstein, A, C., Levine, D, U. (1989). Foundations of education (4th ed.). Boston: Houghton Mifflin Co..

Gaya MLA

Ornstein, Allan, C.., Levine, Daniel, U.. "Foundations of education". 4th ed. Boston: Houghton Mifflin Co., 1989. Text.