Ramankutty, A. (2023). Working plan Nilambur (North) Forest Division (2001-02 to 2010–11). Working Plan Circle, Kerala.
Chicago-referens (17:e uppl.)Ramankutty, A. Working Plan Nilambur (North) Forest Division (2001-02 to 2010–11). Working Plan Circle, Kerala, 2023.
MLA-referens (9:e uppl.)Ramankutty, A. Working Plan Nilambur (North) Forest Division (2001-02 to 2010–11). Working Plan Circle, Kerala, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.