Ryan, Joseph. White ethnics : their life in working class America / edited by Joseph Ryan. - Englewood Cliffs, N.J. : Prentice-Hall, [1974] c1973. - viii, 184 p. ; 21 cm. ISBN: 0139577122. 0139577041 LCCN: 74022326 LC Class. No.: E184.A1 R82 1974 / R82 1974 Dewey Class. No.: 301.45/1/0973