Helfgott, Roy B.
Labor economics / Roy B. Helfgott. - 2nd ed. - Random House 1980.
887
Working class - United States.
Industrial relations - United States.
Labor economics.
HD8072.5 / Hel.
Labor economics / Roy B. Helfgott. - 2nd ed. - Random House 1980.
887
Working class - United States.
Industrial relations - United States.
Labor economics.
HD8072.5 / Hel.