Smolin, L. (2002). Three roads to quantum gravity. Basic Books.
Chicago-stil citatSmolin, Lee. Three Roads to Quantum Gravity. New York, N.Y: Basic Books, 2002.
MLA-referensSmolin, Lee. Three Roads to Quantum Gravity. Basic Books, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.