Cossman, E. J. (1963). How I made 1,000,000 in mail orders. Prentice Hall.
शिकागो स्टाइल उद्धरणCossman, E. Joseph. How I Made 1,000,000 in Mail Orders. New Jersey: Prentice Hall, 1963.
एमएलए उद्धरणCossman, E. Joseph. How I Made 1,000,000 in Mail Orders. Prentice Hall, 1963.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.