Ii, W. B. L. (1978). Mathematics for General Education. Belmont, California: Dickenson.
शिकागो स्टाइल उद्धरणIi, Walter B. Laffer. Mathematics for General Education. Belmont, California: Dickenson, 1978.
एमएलए उद्धरणIi, Walter B. Laffer. Mathematics for General Education. Belmont, California: Dickenson, 1978.
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