Narayana, D. L. (1974). Studies in the economics of farm management in Cuddapah District, Andhra Pradesh: Combined report for the period 1967-68 to 1969-70. Directorate of Economics and Statistics, Ministry of Agriculture, Govt. of India.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Narayana, D. L. Studies in the Economics of Farm Management in Cuddapah District, Andhra Pradesh: Combined Report for the Period 1967-68 to 1969-70. [New Delhi]: Directorate of Economics and Statistics, Ministry of Agriculture, Govt. of India, 1974.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Narayana, D. L. Studies in the Economics of Farm Management in Cuddapah District, Andhra Pradesh: Combined Report for the Period 1967-68 to 1969-70. Directorate of Economics and Statistics, Ministry of Agriculture, Govt. of India, 1974.