Results for "Smithsonian Astrophysical Observatory. Hydrogen Maser Program"
- Finding Aid
SIA RU009546, Margaret J. Geller Videohistory Interviews, 1989-1990
- Date: 1989 1989-1990
- Creator: Geller, Margaret J., interviewee
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 19-001, Marvin, Ursula B, Ursula B. Marvin Papers, circa 1928-2012
- Date: 1928 1928-2012 circa 1928-2012
- Creator: Marvin, Ursula B.
- Creator: Smithsonian Institution Archives
- Finding Aid
SIA Acc. 13-060, Marvin, Ursula B, Ursula B. Marvin Papers, 1926-2007
- Date: 1926 1926-2007
- Creator: Marvin, Ursula B.
- Creator: Smithsonian Institution Archives