APA استشهاد

Straumann, N. (2004). General relativity: With applications to astrophysics. Springer.

استشهاد بنمط شيكاغو

Straumann, Norbert. General Relativity: With Applications to Astrophysics. Berlin ; New York: Springer, 2004.

MLA استشهاد

Straumann, Norbert. General Relativity: With Applications to Astrophysics. Springer, 2004.