Janney, Gareth M., "Band Spectra of the Two Isotopic Species of Yttrium Monochloride," (3 Copies), from the Journal of the Optical Society of America, Vol. 56, No. 12, December,, 1966

Janney, Gareth M., "Band Spectra of the Two Isotopic Species of Yttrium Monochloride," (3 Copies), from the Journal of the Optical Society of America, Vol. 56, No. 12, December,, 1966, box-folder: 47. Georgetown Observatory Collection, GRB-000010. Georgetown University Rare Books , Booth Family Center for Special Collections. https://findingaids.library.georgetown.edu/repositories/14/archival_objects/1163506 Accessed June 26, 2024.