Billions & Billions - Sagan, Carl, and Druyan, Ann (Epilogue by)

A fitting testament to one of the great scientific minds of our day, "Billions & Billions", the final book of Sagan's astonishing career, brilliantly examines the burning questions of our lives, our world, and the universe around us.

Billions & Billions 1998, Ballantine Books, New York, NY

ISBN-13: 9780345379184

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