The Encyclopedia Americana : volume 29
Americana Corporation, 1964
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The Encyclopedia Americana : volume 29
Grolier, 1994
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The Encyclopedia Americana : the international reference work, volume 29
Americana Corporation, 1960
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Encyclopaedia universalis : volume 29
Encyclopaedia Universalis France S.A. , 1989
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The New Encyclopaedia Britannica : volume 29
Encyclopaedia Britannica Inc., 2003
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