APA (7 ম সংস্করণ) উদ্ধৃতি

Beckwith Harry. (1997). Selling the invisible: A field guide to modern marketing. Warner Books / Time Warner Company.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Beckwith Harry. Selling the Invisible: A Field Guide to Modern Marketing. NewYork ,USA: Warner Books / Time Warner Company, 1997.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Beckwith Harry. Selling the Invisible: A Field Guide to Modern Marketing. Warner Books / Time Warner Company, 1997.