00680cam a2200217 4500 134727518 TxAuBib 20090624120000.0 081223s2009||||||||||||||||||||||||eng|u 2008054520 9781583671900 1583671900 DLC DLC ICrlF TxAuBib Yates, Michael, 1946- Why unions matter / Michael D. Yates. 2nd ed. New York : Monthly Review Press, 2009. 240 p. ; 21 cm. Memorial for Charles K. Hessler by Rita and Randy Swingle. Labor unions United States.