Schrödinger, Erwin, 1887-1961. Expanding universes / E. Schrocinger. - Cambridge [Eng.] : University Press, 1956 [ Reprinting 1957] - 93 p. : illus. ; 22 cm. Includes index Subjects--Topical Terms: Cosmology. Dewey Class. No.: 523.1 / SCE 1957