De Witt, Nicholas Education and professional employment in the U. S. S. R. / Nicholas De Witt - Washington : U.S. Government Printing Office , 1961 - xxxix, 856p. : ill. ; 26 cm. Includes bibliographical references and index. Subjects--Topical Terms: EducationUSSRProfessionsVocational education Dewey Class. No.: 370 / DEW