http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
24 pages : color illustrations ; 21 x 25 cm.
Photographs and simple text introduce different devices used by people around the world to make our lives and work easier.
"Abridged text of the original Lothrop, Lee & Shepard Books edition."--page 2 of cover.