Richardson, L. (2003). The sales success handbook: 20 lessons to open and close sales now. McGraw-Hill.
Trích dẫn kiểu ChicagoRichardson, Linda. The Sales Success Handbook: 20 Lessons to Open and Close Sales Now. McGraw-Hill, 2003.
MLA citiranjeRichardson, Linda. The Sales Success Handbook: 20 Lessons to Open and Close Sales Now. McGraw-Hill, 2003.
Opozorilo: Ti citati niso vedno 100% točni.