Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium - Carl Sagan

 
You'll find Carl Sagan's latest articles on this book. The essays are covering different topics such as invention of chess, extraterrestrial life, global warming etc.

File Size: 1.15 MB
Format: pdf

http://www9.zippyshare.com/v/71559200/file.html
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