TY - BOOK AU - Helfgott,Roy B. TI - Labor economics SN - 0394315359 AV - HD8072 .H45 1974 U1 - 331.0973 PY - 1974/// CY - New York PB - Random House KW - Working class KW - United States KW - Industrial relations KW - Labor economics N1 - Includes bibliographies and index; Management; Economics ER -