Einstein, A. (1961). Relativity: The special and the general theory; a popular exposition ([17th ed.].). Crown Publishers.
Chicago-referens (17:e uppl.)Einstein, Albert. Relativity: The Special and the General Theory; a Popular Exposition. [17th ed.]. New York: Crown Publishers, 1961.
MLA-referens (9:e uppl.)Einstein, Albert. Relativity: The Special and the General Theory; a Popular Exposition. [17th ed.]. Crown Publishers, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.