APA
Grover D. K., Kumar S., Singh Karam, Vatta K. & Agro-Economic Research Center L. I.Changes in structural distribution of land holdings and its impact on productivity of major crops in Punjab(two documents) / Karam Singh, D K, Grover, Kamal Vatta and Sanjay Kumar. Ludhiana: .
Chicago
Grover D K, Kumar Sanjay, Singh Karam, Vatta Kamal and Agro-Economic Research Center Ludhiana India.Changes in structural distribution of land holdings and its impact on productivity of major crops in Punjab(two documents) / Karam Singh, D K, Grover, Kamal Vatta and Sanjay Kumar. Ludhiana: .
Harvard
Grover D. K., Kumar S., Singh Karam, Vatta K. and Agro-Economic Research Center L. I.Changes in structural distribution of land holdings and its impact on productivity of major crops in Punjab(two documents) / Karam Singh, D K, Grover, Kamal Vatta and Sanjay Kumar. Ludhiana: .
MLA
Grover D K, Kumar Sanjay, Singh Karam, Vatta Kamal and Agro-Economic Research Center Ludhiana India.Ludhiana: . .