AUTORIZACIONES

• Robbie. - Robbie. [vt “Strange Playfellow”] © 1940 Fictioneers, Inc.; © 1968 by Isaac Asimov.
• Sentido Giratorio. - Runaround. © 1942 by Street and Smith Publications, Inc.; © 1970 by Isaac Asimov.
• Razón. - Reason. © 1941 by Street and Smith Publications, Inc.; © 1969 by Isaac Asimov.
• Atrápame esta Liebre. - Catch That Rabbit. © 1944 by Street and Smith Publications, Inc.
• ¡Embustero! - Liar! © 1941 by Street and Smith Publications, Inc.; © 1969 by Isaac Asimov.
• El Robot Perdido. - Little Lost Robot. © 1947 by Street and Smith Publications, Inc.
• ¡La Fuga! - Escape! © 1945 by Street and Smith Publications, Inc.
• La Prueba. - Evidence. © 1946 by Street and Smith Publications, Inc.
• El Conflicto Evitable. - The Evitable Conflict. © 1950 by Street and Smith Publications, Inc.