APA
Naber G., . (1993). Spacetime and singularities: an introduction. New York: Cambridge University Press.
Chicago
Naber Gregory, . 1993. Spacetime and singularities: an introduction. New York: Cambridge University Press.
Harvard
Naber G., . (1993). Spacetime and singularities: an introduction. New York: Cambridge University Press.
MLA
Naber Gregory, . Spacetime and singularities: an introduction. New York: Cambridge University Press. 1993.