Tiger, Lionel Men in groups. - [1st American ed.] - New York Random House [1969] - xx, 254 p. 920603 Bibliography: p. [218]-245. LCCN: 69016459 //r84 Subjects--Topical Terms: Men--Psychology.Social groupsSex roleSex differences. LC Class. No.: HQ1067 / .T53 1969 Dewey Class. No.: 301.41/1