Harris, Charles Edison. Business negotiating power : optimizing your side of the deal / Charles Edison Harris. - New York : Van Nostrand Reinhold Co., c1983. - xv, 316 p. : ill. ; 24 cm. Includes index. ISBN: 0442236131 LCCN: 83001157 LC Class. No.: HD58.6 .H37 1983 / .H37 1983 Dewey Class. No.: 658.4