APA-referens (7:e uppl.)

PURI S P. (2013). GENERAL THEORY OF RELATIVITY (1ST ED.). PEARSON EDUCATION.

Chicago-referens (17:e uppl.)

PURI S P. GENERAL THEORY OF RELATIVITY. 1ST ED. INDIA: PEARSON EDUCATION, 2013.

MLA-referens (9:e uppl.)

PURI S P. GENERAL THEORY OF RELATIVITY. 1ST ED. PEARSON EDUCATION, 2013.