APA Style
United Nations Educational Scientific and Cultural Organization, Islamabad.. ().
Encyclopedia of Geology. .
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Chicago Style
United Nations Educational Scientific and Cultural Organization, Islamabad..
Encyclopedia of Geology..
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MLA Style
United Nations Educational Scientific and Cultural Organization, Islamabad..
Encyclopedia of Geology..
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Turabian Style
United Nations Educational Scientific and Cultural Organization, Islamabad..
Encyclopedia of Geology..
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.