Sugars, B. J. (2006). Instant profit. McGraw-Hill.
Trích dẫn kiểu ChicagoSugars, Bradley J. Instant Profit. McGraw-Hill, 2006.
Deismireacht MLASugars, Bradley J. Instant Profit. McGraw-Hill, 2006.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.