por Sagan, Carl, 1934-1996 [autor] | Muntaner, Miquel [traductor] | Moya Tasis, Maria del Mar [traductor].
por Sagan, Carl, 1934-1996 [autor] | Druyan, Ann, 1949- [editor] | Soter, Steven [editor] | Sagan, Carl, 1934-1996. Varieties of scientific experience.
por Hawking, Stephen, 1942-2018 [autor] | Sagan, Carl, 1934-1996 [prologuista] | Ortuño, Miguel [traductor] | Hawking, Stephen, 1942-2018. Brief history of time.
por Hawking, Stephen, 1942-2018 [autor] | Ortuño, Miguel [traductor] | Sagan, Carl, 1934-1996 [prologuista] | Hawking, Stephen, 1942-2018. A brief history of time : from the big bang to black holes.