Shewring, W. (2013). Shewring, Walter, Papers. DigitalGeorgetown.
Čikaški stil citiranja (17. izdanje)Shewring, Walter. Shewring, Walter, Papers. Washington, D.C.: DigitalGeorgetown, 2013.
MLA način citiranja (8. izdanje)Shewring, Walter. Shewring, Walter, Papers. DigitalGeorgetown, 2013.
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