A Tractor's Day Lily Schell
Machines at Work-bøgerne i rækkefølge
- A Dump Truck's Day Betsy Rathburn
- A Fire Truck's Day Lily Schell
- A Backhoe's Day Betsy Rathburn
- A Bulldozer's Day Harriet Loy
- An Airplane's Day Harriet Loy
- Race Cars Allan Morey
- Motorcycles Allan Morey
- Police Cars Allan Morey
- School Buses Allan Morey
- Airplanes Rebecca Stromstad Glaser
- Dump Trucks Rebecca Stromstad Glaser
- Fire Trucks Maria T. Schmidt
- Tractors Wendy Strobel Dieker
- Cranes Wendy Strobel Dieker
- Trains Rebecca Stromstad Glaser
