Gray, R. (2015). A history of American poetry. John Wiley & Sons, Ltd.
Čikaški stil citiranja (17. izdanje)Gray, Richard. A History of American Poetry. Chichester, West Sussex, [England]: John Wiley & Sons, Ltd, 2015.
MLA način citiranja (9. izdanje)Gray, Richard. A History of American Poetry. John Wiley & Sons, Ltd, 2015.
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