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000072468 008__ 760723s1976\\\\dcua\\\\\b\\\\001\0\eng\\
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000072468 0500_ $$aQH102$$b.O95
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000072468 24500 $$aOur continent :$$ba natural history of North America.
000072468 260__ $$aWashington :$$bNational Geographic Society,$$cc1976.
000072468 300__ $$a398 p. :$$bill. (1 in pocket) ;$$c29 cm.
000072468 504__ $$aIncludes bibliographical references and index.
000072468 650_0 $$aNatural history$$zNorth America.
000072468 7102_ $$aNational Geographic Society (U.S.)
000072468 85200 $$bgen$$hQH102$$i.O95
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