Johnson, S. (2005). The one minute sales person. Harper collins.
Chicago Edition CitationJohnson, Spencer. The One Minute Sales Person. New Delhi: Harper collins, 2005.
Deismireacht MLAJohnson, Spencer. The One Minute Sales Person. Harper collins, 2005.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.