APA stil citiranja
Eckersley, C. E. (1979). English and American Business Letters: English and American Business Letters. London: Longman.
Chicago stil citiranjaEckersley, Charles Ewart. English and American Business Letters: English and American Business Letters. London: Longman, 1979.
MLA stil citiranjaEckersley, Charles Ewart. English and American Business Letters: English and American Business Letters. London: Longman, 1979.
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