Style de citation APA

Karl Bach. (1979). Selling is simple ... if you don't make it complicated. San Francisco, California: Advance Books.

Style de citation Chicago

Karl Bach. Selling Is Simple ... If You Don't Make It Complicated. San Francisco, California: Advance Books, 1979.

Style de citation MLA

Karl Bach. Selling Is Simple ... If You Don't Make It Complicated. San Francisco, California: Advance Books, 1979.

Attention : ces citations peuvent ne pas être correctes à 100%.