Text ( visual ) : unmediated La disoccupazione : teoria economica e evidenza empirica / Peter Sinclair. -- Bologna : il Mulino , 1989. -- 513 p. : ill. ; 21 cm. -- Includes index. -- ISBN 8815023526 ; (BA40097034) ; https://ci.nii.ac.jp/ncid/BA40097034 Other Title(s): Unemployment : economic theory and evidence. -- Author Heading(s): Sinclair, P. J. N. (Peter J. N.)