Sandage, Allan. The Hubble atlas of galaxies. - Washington, Carnegie Institution of Washington, 1961. - viii, 32, 50 p. plates, diagrs. 30 x 39 cm. - [Carnegie Institution of Washington] Publication 618 . LCCN: 60016568 Subjects--Topical Terms: Stars--Clusters.Stars--Atlases.Nebulae. LC Class. No.: QB851 / .S25 Dewey Class. No.: 523.11