01007nam a2200265Ia 4500 256196 20200229020952.0 021115e19981975ag r 001 spa d 9505082215 PUCPR cicg cm ci K212 .A43 1998 Alchourrón, Carlos E. Local 50546 Normative systems Spanish Introducción a la metodología de las ciencias jurídicas y sociales. Carlos E. Alchourrón, Eugenio Bulygin. Buenos Aires, Editorial Astrea de R. Depalma 1998, c1975. 277 p. 23 cm . Coleccion mayor Filosofia y derecho 1 Local 76810 "3a reimpression . " Translation of Normative systems , Springer - Verlag , c1971 . Includes bibliographical references and index. Law Methodology . LEMB 150 Logic, Symbolic and mathematical Local 127231 Bulygin , Eugenio . Local 66674 184037 184037 0 0 lc 0 K_212_000000000000000__A43_1998 0 cil 131776 7 7 4 2016-05-27 38.00 361292 0 K212 .A43 1998 70000000617220 2016-05-27 00:00:00 r:256196 6