APA stil citiranja
O'Donnell, W. R. (1980). Variety in contemporary English: Variety in contemporary English. London ; Boston ; London: George Allen & Unwin.
Chicago stil citiranjaO'Donnell, William Robert. Variety in contemporary English: Variety in contemporary English. London ; Boston ; London: George Allen & Unwin, 1980.
MLA stil citiranjaO'Donnell, William Robert. Variety in contemporary English: Variety in contemporary English. London ; Boston ; London: George Allen & Unwin, 1980.
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