Whiting, P. H. (1957). 5 great rules of selling (rev ed.). McGraw-Hill.
Style de citation ChicagoWhiting, Percy H. 5 Great Rules of Selling. rev ed. New York: McGraw-Hill, 1957.
Style de citation MLAWhiting, Percy H. 5 Great Rules of Selling. rev ed. McGraw-Hill, 1957.
Attention : ces citations peuvent ne pas être correctes à 100%.