Incoming Resources
- Tractor Mac, farmer's market, written and illustrated by Billy Steers
- Tractor day, Candice F. Ransom ; illustrations by Laura J. Bryant
- Otis and the scarecrow, Loren Long
- Otis, Loren Long
- Tractor Mac, new friend, written and illustrated by Billy Steers
- Tractor Mac, harvest time, Billy Steers
- Tractor Mac, you're a winner, written and illustrated by Billy Steers
- All of the factors of why I love tractors, written by Davina Bell ; illustrated by Jenny Løvlie
- Otis and the kittens, Loren Long
- Otis and the puppy, Loren Long
- Tractor Mac parade's best, Billy Steers
- Old MacDonald drives a tractor, Don Carter
- Tractor Mac family reunion, written and illustrated by Billy Steers
- Duck on a tractor, by David Shannon
- An Otis Christmas, Loren Long
- Otis and the tornado, Loren Long