00995nam a2200253Ia 4500 163526 BIBL 20250925083756.0 840305s1983 pr af b 00010 spa 84128935 //r892 nwpr--- EVLP PR331.8 D249d c1-2 HD8236 .D38 1983 305.5/62/097295 19 PR331.88 D249d Dávila Santiago, Rubén Local 215740 El derribo de las murallas y "El Porvenir de Borinquen" (los centros de estudios sociales obreros a principios del siglo XX) Rubén Dávila Santiago. San Juan, P.R. Centro de Estudios de la Realidad Puertorriqueña 1983. 25 p., ill. Cuadernos Investigación y análisis 8 Local 82680 Bibliography : p. 19-25 Labor movement Puerto Rico History 19th century. Local 122245 Working class Puerto Rico History 19th century. Local 190641 131888 131888 0 0 ddc 0 331_880000000000000_D249D 0 evpr 37273 10 10 B 2016-05-27 197308 0 331.88 D249d 80000001524944 2016-05-27 00:00:00 r:163526 z:ok 31/03/2014 6 0 0 ddc 0 305_900000000000000_D259D 0 abpr 37278 1 1 B 2016-05-27 243469 0 305.9 D259d 60000010010954 2016-05-27 00:00:00 r:163526 z:NCC:D 23