1955, February 20. Radio Comes to Astronomy. Forum No. 431. Participants: John P. Hagen, Director of the Division of Radio Astronomy at the United States Naval Research Laboratory; and Francis J. Hayden, S.J., Director of Georgetown College Observatory. Moderator: Matthew Warren. Georgetown University Radio Forum. Recorded from the Raymond Reiss Studio.

1955, February 20. Radio Comes to Astronomy. Forum No. 431. Participants: John P. Hagen, Director of the Division of Radio Astronomy at the United States Naval Research Laboratory; and Francis J. Hayden, S.J., Director of Georgetown College Observatory. Moderator: Matthew Warren. Georgetown University Radio Forum. Recorded from the Raymond Reiss Studio., Box: 1. Georgetown University Forum Transcripts, GTA-000107. Georgetown University Archives , Booth Family Center for Special Collections. https://findingaids.library.georgetown.edu/repositories/12/archival_objects/1352905 Accessed November 23, 2024.