W.Johnston Mark, & W.Marshall Greg. (2008). Relationship Selling. American: Mc Graw Hill.
Style de citation ChicagoW.Johnston Mark, et W.Marshall Greg. Relationship Selling. American: Mc Graw Hill, 2008.
Style de citation MLAW.Johnston Mark, et W.Marshall Greg. Relationship Selling. American: Mc Graw Hill, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.