Franklin

MLA

Vik, Gretchen N, C. W Wilkinson, and Dorothy Colby Menning Wilkinson. Writing and Speaking In Business. 10th ed. Homewood, IL: Irwin, 1990.

APA

Vik, G. N, Wilkinson, C. W, & Wilkinson, D. Colby Menning. (1990). Writing and speaking in business. 10th ed. Homewood, IL: Irwin.

Chicago

Vik, Gretchen N., C. W Wilkinson, Dorothy Colby Menning Wilkinson, and C. W Wilkinson. Writing and Speaking In Business. 10th ed. Homewood, IL: Irwin, 1990.