APA način citiranja (7. izdanje)
Duffy, J. (1972). Patrick in his own words. Veritas Publications.
Čikaški stil citiranja (17. izdanje)
Duffy, Joseph. Patrick in His Own Words. Dublin: Veritas Publications, 1972.
MLA način citiranja (9. izdanje)
Duffy, Joseph. Patrick in His Own Words. Veritas Publications, 1972.
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