Kaufmann, W. J. (1988). Universe (2nd ed.). W.H. Freeman.
Chicago Edition CitationKaufmann, William J. Universe. 2nd ed. New York: W.H. Freeman, 1988.
MLA Edition CitationKaufmann, William J. Universe. 2nd ed. W.H. Freeman, 1988.
Warning: These citations may not always be 100% accurate.