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 - Grover, D K; Kumar, Sanjay; Singh Karam; Vatta, Kamal; Agro-Economic Research Center, Ludhiana India (Ludhiana, 2000)
Keywords: Agriculture; Crops - Punjab