See how they work & look inside diggers
by Johannah Gilman Paiva, Ashley Rideout, Simon Tegg, Ross Watton

Presents some of the different types of vehicles that are designed for moving the earth, knocking down buildings, building roads and tunnels, mining, and other purposes, and describes their parts and how they are used.
Excavating machineryJuvenile literatureEarthmoving machineryMachineryTechnology