Johnston Mark W, & Marshall Greg W. (2008). Relationship Selling. American: McGraw -Hill.
Style de citation ChicagoJohnston Mark W, et Marshall Greg W. Relationship Selling. American: McGraw -Hill, 2008.
Style de citation MLAJohnston Mark W, et Marshall Greg W. Relationship Selling. American: McGraw -Hill, 2008.
Attention : ces citations peuvent ne pas être correctes à 100%.