00426nam a2200145 a 450000100100000000500170001000800410002704000250006824500320009326000370012530000210016249000360018350000250021983000360024400003625520200930075631.0120111s1968 dr 000 0 spa d aDO-SdBNPbspacBNPHU00aLeyes sociales de España. aMadrid :bInstituto Reus,c1968. a174 p. ;c18 cm.1 aBiblioteca Medina y Marañón aTextos a dos columna 0aBiblioteca Medina y Marañón