Παραπομπή APA

Katkar,L.N. (2014). Mathematical theory of general relativity. Narosa.

Παραπομπή Chicago Style

Katkar,L.N. Mathematical Theory of General Relativity. New Delhi: Narosa, 2014.

Παραπομπή MLA

Katkar,L.N. Mathematical Theory of General Relativity. Narosa, 2014.