| |
---|
Utgitt
| New York : Bell Telephone Laboratories , 1928
|
---|
Omfang
| |
---|
Opplysninger
| "An address given before the Association of science teachers of the middle states and Maryland, Atlantic City, Nov. 26, 1927.". - Overtittelen: Bell telephone laboratories, incorporated. March 1928.
|
---|
Emner
| |
---|