Shewring, W., & Thompson, G. (2013). Shewring, Walter - Colby, Gina Thompson, Collection. DigitalGeorgetown.
Čikaški stil citiranja (17. izdanje)Shewring, Walter, i Gina Thompson. Shewring, Walter - Colby, Gina Thompson, Collection. Washington, D.C.: DigitalGeorgetown, 2013.
MLA način citiranja (8. izdanje)Shewring, Walter, i Gina Thompson. Shewring, Walter - Colby, Gina Thompson, Collection. DigitalGeorgetown, 2013.
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