1
Published: 1932
Superior document: Bell telephone system B-694
2
Published: 1934
Superior document: Bell telephone system B-839
3
Published: 1932
Superior document: Bell telephone system B-681
4
Published: [2019]
Superior document: Title is part of eBook package: De Gruyter Princeton University Press eBook-Package Backlist 2000-2013
Links: Get full text; Get full text; Cover
5
Published: [2019]
Superior document: Title is part of eBook package: De Gruyter DGBA Reference Works <1990
Links: Get full text; Get full text; Cover