Cita APA

Godin, S. (2002). Purple Cow: Transform your Questions (NA.). Penguin Books.

Citación estilo Chicago

Godin, Seth. Purple Cow: Transform Your Questions. NA. England: Penguin Books, 2002.

Cita MLA

Godin, Seth. Purple Cow: Transform Your Questions. NA. Penguin Books, 2002.

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