1. Bowen, Ira S. (1962). American Philosophical Society Year Book. Philadelphia: American Philosophical Society pp. 149–153.
2. Edmondson, Frank K. (1997). AURA and Its US National Observatories. Cambridge: Cambridge University Press, Chap. 5, pp. 26–45.
3. Goldberg, Leo, Orren C. Mohler, and Robert R. McMath (1949). “New Solar Lines in the Spectral Region 1.52–1.75 μ” Astrophysical Journal 109: 28–41.
4. McMath, Francis C., Henry S. Hulbert, and Robert R. McMath (1931). “Preliminary Results on the Application of the Motion Picture Camera to Celestial Photography.” Proceedings of the American Philosophical Society 70: 371–379.
5. McMath, Robert R. (1938). “Recent Studies in Solar Phenomena.” Proceedings of the American Philosophical Society 79: 475–498.