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National Geographic Backyard Guide to the Night Sky, 2nd Edition
Carl Sagan CONTACT A Novel 1985 Simon & Schuster, NY Early Book Club Edition
Cosmos by Carl Sagan (2013-12-10)
Comet by Carl Sagan (1985-11-12)
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Carl Sagan's Cosmic Connection: An Extraterrestrial Perspective
Star Stuff: Carl Sagan and the Mysteries of the Cosmos
Roaring Brook Press