Radhakrishnan, R., & Joji Koottummel. (2012). Silent valley: Cheruthu nilpinte naalvazhi (2nd ed.). Kerala sasthra sahitya parishath.
Chicago Edition CitationRadhakrishnan, R., and Joji Koottummel. Silent Valley: Cheruthu Nilpinte Naalvazhi. 2nd ed. Thrissur: Kerala sasthra sahitya parishath, 2012.
MLA Edition CitationRadhakrishnan, R., and Joji Koottummel. Silent Valley: Cheruthu Nilpinte Naalvazhi. 2nd ed. Kerala sasthra sahitya parishath, 2012.
Warning: These citations may not always be 100% accurate.