Gaya APA

Willis, T, H. (1983). Workbook/study guide to accompany statistics for business and economic by Joseph G. Van Matre, Glenn H. Gilbreath (Rev. ed.). Plano, Texas: Business Publications.

Gaya MLA

Willis, T., Hillman. "Workbook/study guide to accompany statistics for business and economic by Joseph G. Van Matre, Glenn H. Gilbreath". Rev. ed. Plano, Texas: Business Publications, 1983. Text.