Harry, Lou (November 11, 2009). "The Muppets' greatest hits". IBJ.com (Powered by Indianapolis Business Journal. Archived from the original on November 17, 2009. Retrieved November 22, 2009.
Harry, Lou (November 11, 2009). "The Muppets' greatest hits". IBJ.com (Powered by Indianapolis Business Journal. Archived from the original on November 17, 2009. Retrieved November 22, 2009.
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"All-Time Bestselling Paperback Children's Books". Publishers Weekly. 243 (6). New York: Cahners Publishing Company: 30. February 5, 1996. ISSN0000-0019.