Britannica book of the year 1985
Encyclopaedia Britannica Inc., 1985
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Britannica book of the year 1990
Encyclopaedia Britannica Inc., 1990
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Britannica book of the year 1987
Encyclopaedia Britannica Inc., 1987
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Britannica book of the year 1988
Encyclopaedia Britannica Inc., 1988
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The New Encyclopaedia Britannica : propaedia
Encyclopaedia Britannica Inc., 1988
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