International Astronomical Union.
International Astronomical Union Executive Committee correspondence of Joel Stebbins, Secretary, 1921-1922.
International Astronomical Union
International Astronomical Union -- Records and correspondence.
Astronomy -- Societies, etc.
Institutional History
Stebbins, Joel, 1878-1966 Secretary, Executive Committee, International Astronomical Union.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA