TY - BOOK AU - Hart,Herbert Lionel Adolphus TI - El concepto de derecho AV - K 237 .H37 1980 PY - 1980/// CY - México, D.F. PB - Editora Nacional KW - Jurisprudence KW - Local KW - Law KW - Philosophy KW - LEMB N1 - Translation of: The concept of law; Includes bibliographical references and indexes ER -