In the dinosaur's paw /
Patricia Reilly Giff ; illustrated by Blanche Sims.
- New York, N.Y. : Dell Pub. Co., c1985.
- 72 p. : ill. ; 19 cm.
- The Kids of the Polk Street School ; 5. A Yearling book. .
- Giff, Patricia Reilly. Kids of the Polk Street School ; 5 .
Richard Best finds a magic ruler in his desk, which seems to make his wishes come true, including one he wishes he could undo.