Fletcher, M., & Hargreaves, R. (1989). Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa.
Čikaški stil citiranjaFletcher, Mark, i Roger Hargreaves. Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa, 1989.
MLA način citiranjaFletcher, Mark, i Roger Hargreaves. Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa, 1989.
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