Payne-Gaposchkin, Cecilia Helena, 1900- Stars and clusters / Cecilia Payne-Gaposchkin. - Cambridge, Mass. : Harvard University Press, 1979. - 262 p. : ill. ; 25 cm. - The Harvard Books on Astronomy / Ed. by G. Field ... et al. . - Harvard Books on Astronomy . Includes bibliogr. references and index. ISBN: 0674834402 Subjects--Topical Terms: StarsStars--Clusters Dewey Class. No.: 523.8