Schwatt, I. J. (1962). An introduction to the operations with series (2d ed.). Chelsea Pub. Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchwatt, Isaac J. An Introduction to the Operations with Series. 2d ed. New York: Chelsea Pub. Co, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchwatt, Isaac J. An Introduction to the Operations with Series. 2d ed. Chelsea Pub. Co, 1962.
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