Amrine, Michael.
Those inventive Americans. Produced by the National Geographic Special Publications Division. Foreword by Leonard Carmichael. - [Washington, National Geographic Society, 1971] - 231 p. illus. (part col.), ports. (part col.) 27 cm. - [National geographic special publications] .
0870440896
75125340 //r86
Inventors--United States.
T39 / .T5
609/.73
Those inventive Americans. Produced by the National Geographic Special Publications Division. Foreword by Leonard Carmichael. - [Washington, National Geographic Society, 1971] - 231 p. illus. (part col.), ports. (part col.) 27 cm. - [National geographic special publications] .
0870440896
75125340 //r86
Inventors--United States.
T39 / .T5
609/.73