Callahan, J. (2000). The geometry of spacetime: An introduction to special and general relativity. New York: Springer.
Παραπομπή Chicago StyleCallahan, James. The Geometry of Spacetime: An Introduction to Special and General Relativity. New York: Springer, 2000.
Παραπομπή MLACallahan, James. The Geometry of Spacetime: An Introduction to Special and General Relativity. New York: Springer, 2000.
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