Não informado. (2010). Research Correspondence: A supplement issued with research. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Research Correspondence: A Supplement Issued with Research. London: [s.n.], 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Research Correspondence: A Supplement Issued with Research. [s.n.], 2010.
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