ERNEST VAN DEN HAAG AND JOHN P.CONRAD1983 年出版305 页ISBN:0306414163
LEARNING IN ADULTHOOD:A COMPREHENSIVE GUIDE THIRD EDITION
SHARAN B.MERRIAM,ROSEMARY S.CAFFARELLA,LISA M.BAUMGARTNER2007 年出版533 页ISBN:0787975885
WHITE COLLAR WORKERS IN AMERICA 1890-1940 A SOCIAL-POLITICAL HISTORY IN INTERNATIONAL PERSPECTIVE
JURGEN KOCKA1980 年出版403 页ISBN:0803998449