Cita APA (7a ed.)
Smith, G. E. (1929). Human history (First edition.). W.W. Norton & Company.
Cita Chicago Style (17a ed.)
Smith, Grafton Elliot. Human History. First edition. New York: W.W. Norton & Company, 1929.
Cita MLA (9a ed.)
Smith, Grafton Elliot. Human History. First edition. W.W. Norton & Company, 1929.
警告：这些引文格式不一定是100％准确.