APA引文

Mehra, J. (1974). Einstein, Hilbert and the theory of gravitation. D Reidel.

Chicago Edition Citation

Mehra, Jagdish. Einstein, Hilbert and the Theory of Gravitation. Dordecht: D Reidel, 1974.

MLA引文

Mehra, Jagdish. Einstein, Hilbert and the Theory of Gravitation. D Reidel, 1974.

警告：這些引文格式不一定是100％准確.