Παραπομπή APA

Walecka, J. D. (2007). Introduction top general relativity. World Scientific.

Παραπομπή Chicago Style

Walecka, John Dirk. Introduction Top General Relativity. New Jersey: World Scientific, 2007.

Παραπομπή MLA

Walecka, John Dirk. Introduction Top General Relativity. World Scientific, 2007.