AT & T Bell lab technical journal

Sonraí Bibleagrafaíochta
Údar Corparáideach: American telephone and telegraph co
Teanga:English
Foilsithe: New York American telephone and telegraph co. 1922

UL

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Gairmuimhir: 621.395(05) ATT.63/1
621.395(05) ATT.63/2
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