APA استشهاد

De Silva,K.M. (1981). A history of Sri lanka. Oxford University Press.

استشهاد بنمط شيكاغو

De Silva,K.M. A History of Sri Lanka. Delhi: Oxford University Press, 1981.

MLA استشهاد

De Silva,K.M. A History of Sri Lanka. Oxford University Press, 1981.