APA (7th ed.) Citation

Watterson, B. (1990). Weirdos from another planet!: A Calvin and Hobbes collection. Andrews and McMeel.

Chicago Style (17th ed.) Citation

Watterson, Bill. Weirdos from Another Planet!: A Calvin and Hobbes Collection. Kansas City: Andrews and McMeel, 1990.

MLA (8th ed.) Citation

Watterson, Bill. Weirdos from Another Planet!: A Calvin and Hobbes Collection. Andrews and McMeel, 1990.

Warning: These citations may not always be 100% accurate.