Jantsch, J. (2010). Referral engine: Teaching your business to market itself. Portofolio.
Chicago Style (17th ed.) CitationJantsch, John. Referral Engine: Teaching Your Business to Market Itself. London: Portofolio, 2010.
MLA (9th ed.) CitationJantsch, John. Referral Engine: Teaching Your Business to Market Itself. Portofolio, 2010.
Warning: These citations may not always be 100% accurate.