Helicopters are small and have blades instead of wings. Their size can make them very useful for all sorts of jobs. Full-color photographs and leveled text show readers all the things that helicopters can do.
වයස අවුරුදු 6-8
කර්තෘ පිළිබඳ
Percy Leed writes nonfiction books for children, covering topics from sports to science. He lives in Minneapolis, Minnesota.