Doughty, O. (1964). William Collins. Published for the British Council and the National Book League by Longmans, Green & Co..
Čikaški stil citiranja (17. izdanje)Doughty, Oswald. William Collins. London: Published for the British Council and the National Book League by Longmans, Green & Co., 1964.
MLA način citiranja (8. izdanje)Doughty, Oswald. William Collins. Published for the British Council and the National Book League by Longmans, Green & Co., 1964.
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