著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Wilcock, Richard C. and National Bureau of Economic Research and University of Illinois (Urbana-Champaign campus). Institute of Labor and Industrial Relations",The secondary labor force and the measurement of unemployment,,University of Illinois,1957,Reprint series,,,,https://cir.nii.ac.jp/crid/1130000797548989824