Braunfeld, P. G. (1969). Stretchers and shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBraunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. New York: Harper & Row, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBraunfeld, Peter G. Stretchers and Shrinkers: Book 2 Advanced Topics in Stretching and Shrinking. Harper & Row, 1969.
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