Manning, G. L. (1998). Selling today: Building quality partnerships (7th edition.). Upper Saddle River, N.J.: Prentice Hall.
Trích dẫn kiểu ChicagoManning, Gerald L. Selling Today: Building Quality Partnerships. 7th edition. Upper Saddle River, N.J.: Prentice Hall, 1998.
MLA CitationManning, Gerald L. Selling Today: Building Quality Partnerships. 7th edition. Upper Saddle River, N.J.: Prentice Hall, 1998.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.