Asimov Isaac creator text sp Madrid La Factoría de Ideas 2007 2a. ed. monographic spa 314[5] p. 23 cm. general Isaac Asimov; traducción: Manuel Mata Álvarez-Santullano. Includes bibliographical references. Seldon, Hari Fictitious character Fiction Psychohistory Fiction Life on other planets Fiction 9788498003116 8498003113 BTCTA 070310 20160527200603.0 283186