Karl Saqan: Redaktələr arasındakı fərq
Silinən məzmun Əlavə edilmiş məzmun
Sətir 81:
* [http://www.csicop.org/si/show/carl_sagans_life_and_legacy_as_scientist_teacher_and_skeptic Carl Sagan's Life and Legacy as Scientist, Teacher, and Skeptic], [[Committee for Skeptical Inquiry]]
* [http://www.skeptic.com/reading_room/our-place-in-the-universe A Tribute to Carl Sagan: Our Place in the Universe], [[The Skeptics Society]]
*http://en.wikipedia.org/wiki/Carl_Sagan
* {{lib.ru|http://www.lib.ru/INOFANT/SAGAN/}}
* [http://yanko.lib.ru/books/cosmos/sagan-cosmos-ru.htm Космос: эволюция Вселенной, жизни и цивилизации]
* [http://www.daviddarling.info/encyclopedia/S/Sagan.html Sagan, Carl Edward (1934—1996)]
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