APA (7th ed.) Citation

Hopkins, T. (1979). How to master the art of selling anything [. Tom Hopkins Champions Unlimited.

Chicago Style (17th ed.) Citation

Hopkins, Tom. How to Master the Art of Selling Anything [. Arizona: Tom Hopkins Champions Unlimited, 1979.

MLA (9th ed.) Citation

Hopkins, Tom. How to Master the Art of Selling Anything [. Tom Hopkins Champions Unlimited, 1979.

Warning: These citations may not always be 100% accurate.