APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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