Παραπομπή APA

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.

Παραπομπή Chicago Style

Gupta,R P, και 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.

Παραπομπή MLA

Gupta,R P, και 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.