410 2 0
‡a
Columbia University.
‡b
Oral History Project.
‡b
Radio Unit.
‡t
Columbia University oral history collection.
‡n
Part IV.
‡p
Radio pioneers
410 2 0
‡a
Columbia University.
‡b
Oral History Research Office.
‡b
Radio Unit.
‡t
Columbia University oral history collection.
‡n
Part IV.
‡p
Radio pioneers
410 2 0
‡a
Microfilming Corporation of America.
‡t
Columbia University oral history collection.
‡n
Part IV.
‡p
Radio pioneers
410 2 0
‡a
New York Times Oral History Program.
‡t
Columbia University oral history collection.
‡n
Part IV.
‡p
Radio pioneers