Gaya APA

Ward, B, A., Young, K, T. (1987). Instructor's Guide and Test Item File to Company : Children Development and Social Issues . Kanada: D.C Heath and Company.

Gaya MLA

Ward, Betty, Ann., Young, Kathryn, T.. "Instructor's Guide and Test Item File to Company : Children Development and Social Issues". Kanada: D.C Heath and Company, 1987. Text.