APA (7e ed.) Bronvermelding

Jantsch, J. (2010). Referral engine: Teaching your business to market itself. Portofolio.

Chicago (17e ed.) Bronvermelding

Jantsch, John. Referral Engine: Teaching Your Business to Market Itself. London: Portofolio, 2010.

MLA (9e ed.) Bronvermelding

Jantsch, John. Referral Engine: Teaching Your Business to Market Itself. Portofolio, 2010.

Let op: Deze citaties zijn niet altijd 100% accuraat.