Sivasankaran, E. (1984). Visvamahaakavi kumaranasan.
Chicago Edition CitationSivasankaran, Ezhukon. Visvamahaakavi Kumaranasan. Kottayam, Vidyarthimithram, 1984.
MLA引文Sivasankaran, Ezhukon. Visvamahaakavi Kumaranasan. 1984.
警告：這些引文格式不一定是100％准確.
APA引文