Fletcher, M., & Hargreaves, R. (1989). Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa.
Chicago-стиль цитированияFletcher, Mark, và Roger Hargreaves. Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa, 1989.
MLA-цитированиеFletcher, Mark, và Roger Hargreaves. Good for Business: An Intensive Course in Business English. TP.HCM: Trung tâm Bồi dưỡng Bách khoa, 1989.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.