Hirsch, Barry T. The economic analysis of unions : new approaches and evidence / by Barry T. Hirsch and John T. Addison. - London : Allen and Unwin , 1986. - xi, 337p. : tables , figs ; 24cm . Includes index and references ISBN: 0043310982 UKP 10.95 Subjects--Index Terms: TRADE-UNIONS Dewey Class. No.: 331.88 / HIR/E