Cita APA (7a ed.)
Clark, G. (1961). World prehistory: An outline. University Press.
Cita Chicago Style (17a ed.)
Clark, Grahame. World Prehistory: An Outline. Cambridge: University Press, 1961.
Cita MLA (9a ed.)
Clark, Grahame. World Prehistory: An Outline. University Press, 1961.
警告：這些引文格式不一定是100％准確.