Παραπομπή σε μορφή APA (7η εκδ.)

Callahan, J. (2000). The geometry of spacetime: An introduction to special and general relativity. Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Callahan, James. The Geometry of Spacetime: An Introduction to Special and General Relativity. New York ; Berlin: Springer, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Callahan, James. The Geometry of Spacetime: An Introduction to Special and General Relativity. Springer, 2000.