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000072197 010__ $$a72-004572
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000072197 1001_ $$aSagan, Carl,$$d1934-1996$$eed.
000072197 24510 $$aUFO's--a scientific debate.$$cEdited by Carl Sagan and Thornton Page.
000072197 260__ $$aIthaca [N.Y.]$$bCornell University Press$$c[1972]
000072197 300__ $$axxxi, 310 p.$$billus.$$c23 cm.
000072197 500__ $$aPapers presented at a symposium sponsored by the American Association for the Advancement of Science, held in Boston on Dec. 26-27, 1969.
000072197 504__ $$aIncludes bibliographies.
000072197 650_0 $$aUnidentified flying objects$$vCongresses.
000072197 650_0 $$aUnidentified flying objects.
000072197 7001_ $$aPage, Thornton$$eed.
000072197 7102_ $$aAmerican Association for the Advancement of Science.
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000072197 980__ $$aBOOK