Pogrebin, Letty Cottin. Among friends : who we like, why we like them, and what we do with them / Letty Cottin Pogrebin. - New York : McGraw-Hill, c1987. - xvi, 416 p. ; 24 cm. Includes index. Bibliography: p. 397-406. ISBN: 0070504040 Subjects--Topical Terms: Friendship. Dewey Class. No.: 302.3/4