Template Author Surname, Initials. (Year of publication). Title of the book. (ed.). doi or Retrieved from URL
Reference list / Bibliography
Tracy, B. (2014). Marketing. Retrieved from https://ebookcentral.
proquest.com/lib/aitie/detail.action?docID=1596433#
In-text citation
“Many marketing experts say that all marketing in the future will depend on your ability to segment.” (Tracy, 2014, p.35)
or
According to Tracy (2014) your ability to segment… (p.35)