Rovelli, Carlo Covariant loop quantum gravity : an elementary introduction to quantum gravity and spinfoam theory / Carlo Rovelli and Francesca Vidotto - Cambridge : Cambridge University Press, 2015. - xii, 254 p. : ill. ; 24 cm. Including reference and index. ISBN: 9781108810258 Subjects--Topical Terms: Quantum gravityQuantum cosmology Dewey Class. No.: 530.143 / ROV/C