Watterson, B. (1990). Weirdos from another planet!: A Calvin and Hobbes collection. Andrews and McMeel.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWatterson, Bill. Weirdos from Another Planet!: A Calvin and Hobbes Collection. Kansas City: Andrews and McMeel, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWatterson, Bill. Weirdos from Another Planet!: A Calvin and Hobbes Collection. Andrews and McMeel, 1990.
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