National Bureau of Soil Survey and Land Use Planning. (2008). Annual report 2007-08. National Bureau of Soil Survey and Land Use Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Bureau of Soil Survey and Land Use Planning. Annual Report 2007-08. Nagpur: National Bureau of Soil Survey and Land Use Planning, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Bureau of Soil Survey and Land Use Planning. Annual Report 2007-08. National Bureau of Soil Survey and Land Use Planning, 2008.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.