Screws (The Bridgestone Scienc - Library Binding - ACCEPTABLE

Screws Hardcover Anne Welsbacher

Screws (The Bridgestone Science Library : Understanding Simple Machines)

Science Book of Machines - Library Binding By Ardley, Neil - VERY GOOD

Street Sweepers (Machines at Work Big Machines) - Library Binding - VERY GOOD

Simple Machines (Rookie - Library Binding, by Fowler Allan - Very Good

Pulleys to the Rescue (Simple Machines to the Rescue) - Library Binding - GOOD