Sjoberg, Lennart A cognitive theory of similarity / by Lennart Sjoberg - [Goteborg] : University of Goteborg, 1972. - 23p. - Goteborg psychological reports ; v. 2, no. 10 . Cover-title. Includes bibliographical references Subjects--Topical Terms: Cognition. LC Class. No.: BF 76.5 SJO 1972