Gaya APA
Manning, G, L., reece, B, L. (2007).
Selling Today Creating Customer Value .
Upper Saddle River, New Jersey:
Pearson Education.
Gaya MLA
Manning, Gerald, L.., reece, Barry, L..
"Selling Today Creating Customer Value".
Upper Saddle River, New Jersey:
Pearson Education,
2007.
Text.