APA Style

Chaffey, D., Ellis-Chadwick, F. (2016). Digital Marketing: Strategy, Implementation and Practice, Sixth Edition (Sixth edition). United Kingdom: Pearson Education Limited.

MLA Style

Chaffey, Dave., Ellis-Chadwick, Fiona. "Digital Marketing: Strategy, Implementation and Practice, Sixth Edition". Sixth edition United Kingdom: Pearson Education Limited, 2016. Text.