Winkler, John Winkler on marketing planning John Winkler - Associated Business Programmes Ltd.; Distributed by Cassell : London 1972 - xii, 291 p. : illus. ; 25 cm. Includes index. Bibliography: p. 279-281. ISBN: 0304290777 LCCN: 73-176193 Subjects--Topical Terms: MarketingPlanning