Pingali, P. L. (1989). Institutional and environmental constraints to agricultural intensification. Agricultural Economics Department, International Rice Research Institute.
Citazione stile Chigago Style (17a edizione)Pingali, Prabhu L. Institutional and Environmental Constraints to Agricultural Intensification. Los Baños, Laguna: Agricultural Economics Department, International Rice Research Institute, 1989.
Citatione MLA (9a ed.)Pingali, Prabhu L. Institutional and Environmental Constraints to Agricultural Intensification. Agricultural Economics Department, International Rice Research Institute, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.