APA (7e ed.) Bronvermelding

Ries, A. (2007). The 22 Immutable Laws of Marketing. Quercus Publishing Ltd.

Chicago (17e ed.) Bronvermelding

Ries, Al. The 22 Immutable Laws of Marketing. London: Quercus Publishing Ltd, 2007.

MLA (9e ed.) Bronvermelding

Ries, Al. The 22 Immutable Laws of Marketing. Quercus Publishing Ltd, 2007.