APA-referens (7:e uppl.)

Steinmetz, C. P. (1923). Four lectures on relativity and space. McGraw-Hill Book Company, inc..

Chicago-referens (17:e uppl.)

Steinmetz, Charles Proteus. Four Lectures on Relativity and Space. New York [etc.]: McGraw-Hill Book Company, inc., 1923.

MLA-referens (8:e uppl.)

Steinmetz, Charles Proteus. Four Lectures on Relativity and Space. McGraw-Hill Book Company, inc., 1923.