APA (7th ed.) Citation

Hopkins. (1982). How to master the art of selling. Harper Collins Business.

Chicago Style (17th ed.) Citation

Hopkins. How to Master the Art of Selling. new York: Harper Collins Business, 1982.

MLA (9th ed.) Citation

Hopkins. How to Master the Art of Selling. Harper Collins Business, 1982.

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