APA (7th ed.) Citation

Godin, S. (2009). Purple cow : transform your business by being remarkable / Seth Godin: Transform your business by being remarkable ([New ed.].). Portfolio.

Chicago Style (17th ed.) Citation

Godin, Seth. Purple Cow : Transform Your Business by Being Remarkable / Seth Godin: Transform Your Business by Being Remarkable. [New ed.]. New York: Portfolio, 2009.

MLA (9th ed.) Citation

Godin, Seth. Purple Cow : Transform Your Business by Being Remarkable / Seth Godin: Transform Your Business by Being Remarkable. [New ed.]. Portfolio, 2009.

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