Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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