Knotts, B. (2000). Track and field. Children's Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKnotts, Bob. Track and Field. New York: Children's Press, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKnotts, Bob. Track and Field. Children's Press, 2000.
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