APA Style

Chaffey, D., Ellis-Chadwick, F. (2016). Digital marketing : strategy, implementation and practice (6th. Ed). Harlow: Pearson Education.

MLA Style

Chaffey, Dave., Ellis-Chadwick, Fiona. "Digital marketing : strategy, implementation and practice". 6th. Ed Harlow: Pearson Education, 2016. Computer File.