Comics in 1991

Revenge of the Baby-SAT: A Calvin and Hobbes Collection by Watterson, Bill

Revenge of the Baby-SAT by Watterson, Bill

Scientific Progress Goes Boink by Watterson, Bill

The Revenge of the Baby-SAT: A Calvin and Hobbes Collection Volume 6 by Watterson, Bill

Scientific Progress Goes Boink: A Calvin and Hobbes Collection Volume 7 by Watterson, Bill

Baby Blues by Kirkman, Rick, Scott, Jerry

Cartoon History of the United States by Gonick, Larry

Unnatural Selections by Larson, Gary