Cresci, M. W. (1993). Complete Book of Modern Business letters. New York: Reward Book.
शिकागो स्टाइल उद्धरणCresci, Martha W. Complete Book of Modern Business Letters. New York: Reward Book, 1993.
एमएलए उद्धरणCresci, Martha W. Complete Book of Modern Business Letters. New York: Reward Book, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.