APA
Chaffey D., Smith P., . (2015). Emarketing excellence. London: Routledge.
Chicago
Chaffey Dave, Smith P.R, . 2015. Emarketing excellence. London: Routledge.
Harvard
Chaffey D., Smith P., . (2015). Emarketing excellence. London: Routledge.
MLA
Chaffey Dave, Smith P.R, . Emarketing excellence. London: Routledge. 2015.