1
by Clear, Todd R.
Published 1986
2
by Tunstall, W. Brooke.
Published 1985
Subjects: ...American Telephone and Telegraph Company....
3
4
Published 1989
...Encyclopedia of American business history and biography...
5
6
Published 2005
7
Published 1993
8
Published 1994
9
10
by Hanan, Mack.
Published 1990
11
by Maurer, Harry.
Published 1981
12
13
by Parry, Scott B.
Published 2000
14
by Stolovitch, Harold D.
Published 2002
15
by McCain, Donald V.
Published 2004
16
17
Published 2003
18
19
20
Published 2008