Gaya APA

Esq, C, E, H. (1983). Business negotiating power : optimizing your side of the deal (1). USA: Van Nostrand Reinhold, Inc.

Gaya MLA

Esq, Charles, Edison, Harris,. "Business negotiating power : optimizing your side of the deal". 1 USA: Van Nostrand Reinhold, Inc, 1983. Text.