Grewal, J. S. (1991). The Sikhs of the Punjab (Second edition.). Cambridge University Press.
芝加哥风格引文Grewal, J. S. The Sikhs of the Punjab. Second edition. Cambridge [England] ; New York: Cambridge University Press, 1991.
MLA引文Grewal, J. S. The Sikhs of the Punjab. Second edition. Cambridge University Press, 1991.
警告：这些引文格式不一定是100％准确.