APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：這些引文格式不一定是100％准確.