Escalators (How It Works)
Book Details
Author(s)Hicks, Kelli
PublisherRourke Educational Media
ISBN / ASIN1627177698
ISBN-139781627177696
AvailabilityIn Stock.
Sales Rank745,691
MarketplaceUnited States 🇺🇸
Description
Describes how an escalator works using a complex conveyor system and how it makes transportation more convenient.



