Purushothaman Cherukunnam. (1991). Sarveppalli Radhakrishnan. Poorna.
Chicago Edition CitationPurushothaman Cherukunnam. Sarveppalli Radhakrishnan. Kozhikode: Poorna, 1991.
MLA引文Purushothaman Cherukunnam. Sarveppalli Radhakrishnan. Poorna, 1991.
警告：這些引文格式不一定是100％准確.