7538
Burlingame, Roger
9881-
Men and machines
New York
The New American Library
1959
144p. ill
"A ladder ed. at the 1000-word level"
Original Title: Machines that built America
Adapted by Adolph Hyers
Inventions
Inventors, American
United States Civilization
T
21
.
B842
1959
AU
TI
TI Machines that built America
LE
