Gaya APA

Husen, T., Postlethwaite, T, N. (1989). The International encyclopedia of education research and studies supplementary volume one . New York: Pergamon.

Gaya MLA

Husen, Torsten., Postlethwaite, T., Neville. "The International encyclopedia of education research and studies supplementary volume one". New York: Pergamon, 1989. Text.