APA Style
Botha, Rudolf P.. ().
The World almanc and book of facts 1980 .
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Chicago Style
Botha, Rudolf P..
The World almanc and book of facts 1980.
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MLA Style
Botha, Rudolf P..
The World almanc and book of facts 1980.
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Turabian Style
Botha, Rudolf P..
The World almanc and book of facts 1980.
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