Croxton, F. E., & Cowden, D. J. (1960). Practical business statistics/3e (3rd ed.). Prentice-Hall.
शिकागो स्टाइल उद्धरणCroxton, Frederick E., और Dudley J. Cowden. Practical Business Statistics/3e. 3rd ed. New Jersy: Prentice-Hall, 1960.
एमएलए उद्धरणCroxton, Frederick E., और Dudley J. Cowden. Practical Business Statistics/3e. 3rd ed. Prentice-Hall, 1960.
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