Photometric researches
Subtitle: the eclipsing variables RX Hydrae, TW Andromedae
By: by Raymond Smith Dugan
Series: Contributions from the Princeton University Observatory -- no. 14
Publisher: The Observatory
Published: 1933
Place of publication: Princeton, N. J
Language: eng
Number of pages: 19
Subjects: Variable stars; Stars; Spectra
Notes: Bibliography: p. 9-10, 18-19.