SPECTRAL TYPES AND HΓ OBSERVATIONS FOR STARS IN EIGHT ASSOCIATIONS

G. A. H. Walker and S. M. Hodge

© 1968. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A.
Publications of the Astronomical Society of the Pacific, Volume 80, Number 474 Citation G. A. H. Walker and S. M. Hodge 1968 PASP 80 290 DOI 10.1086/128631