210559 Wald, R. M. (1977). Space, time and gravity: The theory of the big bang and black holes. Chicago : University of Chicago Pr..
Chicago-viite (17. p.)210559 Wald, Robert M. Space, Time and Gravity: The Theory of the Big Bang and Black Holes. Chicago : University of Chicago Pr., 1977.
MLA-viite (9. p.)210559 Wald, Robert M. Space, Time and Gravity: The Theory of the Big Bang and Black Holes. Chicago : University of Chicago Pr., 1977.
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