Gupta,R P, & Satyendra Kumar,Tirlok Singh. (1984). Soil managent to increase crop production: A consolidated report 1967-82 of all India coordinated research project on improvement of soil physcial conditions to increase agricultural production of problematic areas. ICAR.
শিকাগো স্টাইলে সাইটেশনGupta,R P, এবং Satyendra Kumar,Tirlok Singh. Soil Managent to Increase Crop Production: A Consolidated Report 1967-82 of All India Coordinated Research Project on Improvement of Soil Physcial Conditions to Increase Agricultural Production of Problematic Areas. New Delhi: ICAR, 1984.
এমএলএ সাইটেশনGupta,R P, এবং Satyendra Kumar,Tirlok Singh. Soil Managent to Increase Crop Production: A Consolidated Report 1967-82 of All India Coordinated Research Project on Improvement of Soil Physcial Conditions to Increase Agricultural Production of Problematic Areas. ICAR, 1984.