@book{10508,
	author = {Naber, Gregory L.,},
	title = {Spacetime and singularities :},
	publisher = {Cambridge University Press,},
	year = {1988.},
	series = {London Mathematical Society student texts ;},
	address = {Cambridge [Cambridgeshire] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/cam029/87035321.html}
}