Ries, Al. Positioning : the battle for your mind / by Al Ries and Jack Trout. - 1st ed., rev. - New York : McGraw-Hill, c1986. - x, 213 p. ; 21 cm. Includes index. ISBN: 0070652643 Subjects--Topical Terms: Positioning (Advertising) Index Terms--Curriculum Objective: SOM1 LC Class. No.: HF5827.2 / .R53 1986 Dewey Class. No.: 659.1