Não informado. (2010). Research Correspondence: A supplement issued with research. [s.n.].
Chicago-referens (17:e uppl.)Não informado. Research Correspondence: A Supplement Issued with Research. London: [s.n.], 2010.
MLA-referens (8:e uppl.)Não informado. Research Correspondence: A Supplement Issued with Research. [s.n.], 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.