Chicago: University Press, 1971. Graphs and charts illustrated in black and white. xviii, 522 pages. 8vo, green cloth with silver lettering, d.w. (rubbed, spine sunned). Chicago: University of Chicago Press, (1971). Very good(+) in a very good dust wrapper. Revised and enlarged from the original Russian edition by the authors. Translated by Eli Arlock. Edited by Kip S. Thorne and W. David Arnett. More