Machines and the men who made the world of industry /

Bibliographic Details
Main Author:	Hartman, Gertrude
Format:	Book
Language:	English
Published:	New York : The Macmillan company, [1939]
Subjects:	Industrial arts > History. Industrial arts > Juvenile literature. Machinery > Juvenile literature. Inventors.

Description
Physical Description:	x pages , 1 ., 278 pages : illustrations, diagrams