OToole, C. (1990). Insects and spiders: Encyclopedia of the animal world. Facts on File.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOToole, Christopher. Insects and Spiders: Encyclopedia of the Animal World. New York: Facts on File, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOToole, Christopher. Insects and Spiders: Encyclopedia of the Animal World. Facts on File, 1990.
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