Cohen, William A., 1937- How to sell to the government : a step-by-step guide to success / William A. Cohen foreword by Paul L. Smith. - New York : John Wiley & Sons, 1981. - 434 p. : ill. ; 24 cm. 'A Ronald Press Publication' Includes index. ISBN: 0471081035 LCCN: 80-22997 Subjects--Topical Terms: Government purchasing--United States.