Unknown. (2023). Keralaranyam: Centenary issue. Kerala Forest Service Publication, Kerala.
Čikaški stil citiranja (17. izdanje)Unknown. Keralaranyam: Centenary Issue. Kerala Forest Service Publication, Kerala, 2023.
MLA način citiranja (9. izdanje)Unknown. Keralaranyam: Centenary Issue. Kerala Forest Service Publication, Kerala, 2023.
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