Saxena, B. C., Singh, H. P., & Verma, S. P. (1980). Statistical studies on milk production, income and employment under different categories of agricultural holdings in the milk shed area of Greater Calcutta Milk Supply Scheme, Calcutta - West Bengal (1976-77). Indian Agricultural Statistics Research Institute.
Chicago-referens (17:e uppl.)Saxena, B. C., H. P. Singh, och S. P. Verma. Statistical Studies on Milk Production, Income and Employment Under Different Categories of Agricultural Holdings in the Milk Shed Area of Greater Calcutta Milk Supply Scheme, Calcutta - West Bengal (1976-77). New Delhi: Indian Agricultural Statistics Research Institute, 1980.
MLA-referens (8:e uppl.)Saxena, B. C., et al. Statistical Studies on Milk Production, Income and Employment Under Different Categories of Agricultural Holdings in the Milk Shed Area of Greater Calcutta Milk Supply Scheme, Calcutta - West Bengal (1976-77). Indian Agricultural Statistics Research Institute, 1980.