APA Style
Purple Cow: Transform Your Business by Being Remarkable. (2008).
USA:
Penguin Books.
Chicago Style
Purple Cow: Transform Your Business by Being Remarkable.
1st.
USA:
Penguin Books,
2008.
Text.
MLA Style
Purple Cow: Transform Your Business by Being Remarkable.
1st.
USA:
Penguin Books,
2008.
Text.
Turabian Style
Purple Cow: Transform Your Business by Being Remarkable.
USA:
Penguin Books,
2008.
Print.