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Copy/paste the text below into your blog. <a href="http://www.goodreads.com/book/show/61665.Billions_and_Billions_Thoughts_on_Life_and_Death_at_the_Brink_of_the_Millennium?utm_medium=api&amp;utm_source=blog_review" style="float: left; padding-right: 20px"><img alt="Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium" border="0" src="http://s3.amazonaws.com/photo.goodreads.com/books/1170592651m/61665.jpg" /></a> <a href="http://www.goodreads.com/book/show/61665.Billions_and_Billions_Thoughts_on_Life_and_Death_at_the_Brink_of_the_Millennium?utm_medium=api&utm_source=blog_review">Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium</a> by <a href="http://www.goodreads.com/author/show/10538.Carl_Sagan">Carl Sagan</a><br/><br/> <a href="http://www.goodreads.com/review/show/18072242?utm_medium=api&utm_source=blog_review"><h3>My review</h3></a> rating: 3 of 5 stars<br/>Interesante y didáctico. <br/> <br/><a target="_blank" href="http://arellanos.blogspot.com/2007/06/miles-de-millones-carl-sagan.html">http://arellanos.blogspot.com/...</a> <br/><br/><a href="http://www.goodreads.com/review/list/332238?utm_medium=api&utm_source=blog_review">View all my reviews.</a>