MacVittie, G. C. Cosmological theory / G. C. MacVittie. - London : Methuen, 1952. - viii, 103 p. ; 18 cm. - Methuen's Monographs on physical subjects ; . Included index. 337 337 Subjects--Topical Terms: Cosmology. Dewey Class. No.: 523.1 / M254c