APA (7th ed.) Citation

Beckwith, H. (1997). Selling the invisible: A field guide to modern marketing. Warner Books.

Chicago Style (17th ed.) Citation

Beckwith, Harry. Selling the Invisible: A Field Guide to Modern Marketing. New York: Warner Books, 1997.

MLA (9th ed.) Citation

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

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