Photometry of hydrogen and calcium lines in stellar spectra
By: by Cecilia H. Payne and Emma T. R. Williams
Series: Harvard reprint -- 55
Publisher: Astronomical Observatory of Harvard College
Published: 1929
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 538
Notes: Cover title.

"Reprinted from The Monthly Notices of the Royal Astronomical Society, Vol. LXXXIX, No. 5."