por Asimov, Isaac, 1920-1992 [autor] | Paredes Larrucea, Miguel [traductor].
por Hoyle, Fred, Sir [autor] | Gonzalez, Luis [traductor].
por Mason, Stephen Finney, 1923- [autor] | Solís Santos, Carlos [traductor] | Mason, Stephen Finney, 1923-. History of sciences.
por Asimov, Isaac, 1920-1992 [autor] | Moran Samaniego, Francisco [traductor] | Asimov, Isaac, 1920-1992. Extracts of.
por Euler, Leonhard, 1707-1783 [autor] | Rioja, Ana [prologuista].
por Asimov, Isaac, 1920-1992 [autor] | Escohotado, Antonio [traductor] | The Magazine Of Fantasy And Science Fiction | Asimov, Isaac, 1920-1992. Tragedy of the moon.