Incoming Resources
- Norma Lee I don't knock on doors, knock, knock jokes, compiled by Charles Keller ; illustrated by Paul Galdone
- Laughs, hoots & giggles, by Joseph Rosenbloom ; illustrations by Joyce Behr & Sanford Hoffman
- Knock! Knock! Who was there?, by Brian Elling ; illustrated by Nancy Harrison and Andrew Thomson
- Nutty knock knocks!, Joseph Rosenbloom ; drawings by Sandy Hoffman
- Knock your socks off, a book of knock-knock jokes
- Knock-knock! who's there, by Joseph Rosenbloom, ; drawings by Sandy Hoffman
- Old Turtle's 90 knock-knocks, jokes, and riddles, Leonard Kessler
- 101 knock-knock jokes, guaranteed to make even a sourpuss smile, by Sam Schultz ; pictures by Joan Hanson