ISBN 1333456972 books & textbook
Comparison of the Spectra of Rigelian, Crucian and Alnitamian Stars; A Discussion of the Line Spectrum of Alpha Orionis and Its Relation to That of ... of Gamma Cassiopeiae (Classic Reprint)
Forgotten Books /2018-08-24 Paperback / 53 Pages
isbn-10: 1333456972 / isbn-13: 9781333456979
