-. American Association University Professors Bulletin, Vol. 41, Number 2, Summer 1955. American Association University Professors.
Čikaški stil citiranja (17. izdanje)-. American Association University Professors Bulletin, Vol. 41, Number 2, Summer 1955. American Association University Professors.
MLA način citiranja (8. izdanje)-. American Association University Professors Bulletin, Vol. 41, Number 2, Summer 1955. American Association University Professors.
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