Grice, W. J. (1971). Catchment planning and contour planting for safe water disposal, water and soil conservation in the plains areas of north-east India. Tocklai Experimental Station.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Grice, W. J. Catchment Planning and Contour Planting for Safe Water Disposal, Water and Soil Conservation in the Plains Areas of North-east India. Jorhat: Tocklai Experimental Station, 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Grice, W. J. Catchment Planning and Contour Planting for Safe Water Disposal, Water and Soil Conservation in the Plains Areas of North-east India. Tocklai Experimental Station, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.