00631nam a2200193Ia 450000100070000000500170000700800410002404000100006508200230007510000350009824500580013325000160019126000560020730000190026350000450028250400320032765000380035965000400039727548920230222144129.0051013s2005    pr a   grf    000 0dspa d  aPUCPR00221a331.8bL8648a2  aLópez Ruyol, Ebenecer2Local13aEl abc del movimiento obrerocEbenecer López Ruyol.  a2a ed. rev.  aCarolina, P.R.bInstituto Técnico Sindicalc2005.  a236 p.c20 cm.  aContains the author's biographical data.  aBibliography: p. [219]-221. 0aTrade unionszPuerto Rico.2Local 0aLaborzPuerto RicoxHistory.2Local