Knapp, W. I. (1967). Life, writings and correspondence of George Borrow (1803-1881). Gale Research Co..
Čikaški stil citiranja (17. izdanje)Knapp, William I. Life, Writings and Correspondence of George Borrow (1803-1881). Detroit: Gale Research Co., 1967.
MLA način citiranja (8. izdanje)Knapp, William I. Life, Writings and Correspondence of George Borrow (1803-1881). Gale Research Co., 1967.
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