India. Ministry of Stastics and Programme Implementation. Central Stastical Organisation.;Kerala. Department of Economics and Statistics. (2001). Proceedings of the National workshop on environmental statistics, 2001. CSO.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Stastics and Programme Implementation. Central Stastical Organisation.;Kerala. Department of Economics and Statistics. Proceedings of the National Workshop on Environmental Statistics, 2001. CSO, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Stastics and Programme Implementation. Central Stastical Organisation.;Kerala. Department of Economics and Statistics. Proceedings of the National Workshop on Environmental Statistics, 2001. CSO, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.