APA استشهاد

Sheik Ali, B. (1981). History: Its theory and method (2nd ed.).

استشهاد بنمط شيكاغو

Sheik Ali, B. History: Its Theory and Method. 2nd ed. Delhi, 1981.

MLA استشهاد

Sheik Ali, B. History: Its Theory and Method. 2nd ed. 1981.