O. P. Singh, P. K. S. (2014). Water Intensity of Milk Production: A Comparative Analysis from Waterscarce and Water Rich Regions of India. Economic Affairs.
Chicago Edition CitationO. P. Singh, P. K. Singh. Water Intensity of Milk Production: A Comparative Analysis from Waterscarce and Water Rich Regions of India. Economic Affairs, 2014.
MLA引文O. P. Singh, P. K. Singh. Water Intensity of Milk Production: A Comparative Analysis from Waterscarce and Water Rich Regions of India. Economic Affairs, 2014.
警告：這些引文格式不一定是100％准確.