00537nam a2200169Ia 4500 193009 BIBL 20160527192049.0 910516s1990 pr a f00010 por d Santos, Diana. Local 165252 Matemática básica Diana Santos. San Juan, P.R. Publicaciones Puertorriqueñas 1990. x, 338 p. ill. Mathematics Local 132758 Mathematics Study and teaching (Elementary) Local 132758 López, Ramón, LEMB 3659 146164 146164 0 0 0 510_000000000000000_S237M 0 ci 164655 10 10 B 2016-05-27 128546 0 510 S237m 80000000351356 2016-05-27 00:00:00 r:193009 z:NCC:D 6