Metcalf, R. L. (1982). Introduction to insect pest management (2nd ed.). John Wiley and Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMetcalf, Robert L. Introduction to Insect Pest Management. 2nd ed. New York: John Wiley and Sons, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMetcalf, Robert L. Introduction to Insect Pest Management. 2nd ed. John Wiley and Sons, 1982.
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