Gaya APA

Chaffey, D., Hemphill, T. (2019). Digital Business and E-Commerce Management (Seventh Edition) (7). New York: Pearson.

Gaya MLA

Chaffey, Dave., Hemphill, Tanya. "Digital Business and E-Commerce Management (Seventh Edition)". 7 New York: Pearson, 2019. Text.