MLA

Eddington, Arthur Stanley. Space Time and Gravitation : an Outline of the General Relativity Theory. Cambridge: Cambridge University press, 1923.

APA

Eddington, A. Stanley. (1923). Space time and gravitation : an outline of the general relativity theory. Cambridge: Cambridge University press.

Chicago

Eddington, Arthur Stanley, Space Time and Gravitation: An Outline of the General Relativity Theory. Cambridge: Cambridge University press, 1923.