ISBN 9781683423928 books & textbook
Elevators: Engineering Wonders Book―Grades 3-4 Interactive Book on Elevator History, Construction, Engineering With Photographs, Vocabulary, Reading Comprehension an Extension Activities (48 pgs)
Rourke Educational Media /2017-08-01 Library Binding / 48 Pages
isbn-10: 1683423925 / isbn-13: 9781683423928
