Regional Conference on Relativity University of Pittsburgh & Farnsworth, D. (1972). Methods of local and global differential geometry in general relativity: Proceedings of the Regional Conference on Relativity held at the University of Pittsburgh, Pittsburgh, Pennsylvania, July 13-17, 1970. Springer-Verlag.
Παραπομπή σε μορφή Chicago (17η εκδ.)Regional Conference on Relativity University of Pittsburgh και D. Farnsworth. Methods of Local and Global Differential Geometry in General Relativity: Proceedings of the Regional Conference on Relativity Held at the University of Pittsburgh, Pittsburgh, Pennsylvania, July 13-17, 1970. Berlin, New York: Springer-Verlag, 1972.
Παραπομπή σε μορφή MLA (9th εκδ.)Regional Conference on Relativity University of Pittsburgh και D. Farnsworth. Methods of Local and Global Differential Geometry in General Relativity: Proceedings of the Regional Conference on Relativity Held at the University of Pittsburgh, Pittsburgh, Pennsylvania, July 13-17, 1970. Springer-Verlag, 1972.