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Incoming Resources
- Kids' funniest knock-knocks, Charles Keller ; illustrated by Jeff Sinclair
- Silly knock-knocks, illustrated by Steve Harpster ; Joseph Rosenbloom
- Knock, knock!, in order of appearance on our welcome mat, Saxton Freymann ... [and others]
- Nutty knock knocks!, Joseph Rosenbloom ; drawings by Sandy Hoffman. --
- Best knock-knock book ever, Charles Keller ; illustrated by Jeff Sinclair
- 365 knock-knock jokes, by Robert Myers ; drawings by Eileen N. Toohey
- Ho ho ho, ha ha ha, holly-arious Christmas knock-knock jokes, by Katy Hall & Lisa Eisenberg ; pictures by Stephen Carpenter