Cita APA (7a ed.)

Ehlers, J. (1967). Relativity Theory and Astrophysics: : Galactic Structure. American Mathematical Society.

Cita Chicago Style (17a ed.)

Ehlers, Jurgen. Relativity Theory and Astrophysics: : Galactic Structure. Providence: American Mathematical Society, 1967.

Cita MLA (9a ed.)

Ehlers, Jurgen. Relativity Theory and Astrophysics: : Galactic Structure. American Mathematical Society, 1967.