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The export economies their pattern of development in historical perspective
Levin, Jonathan V., (1960)
Fertilizer supplies for developing countries : issues in the transfer and development of technology
Mukherjee, Shishkir K., (1985)
Fertilisers
Collins, Peter, (1963)
Economic and technical evaluation of overseas shipment and utilization of elemental phosphorus for fertilizer production
Scott, W. C., (1969)
Economic comparison of overseas manufacture and importation of anhydrous ammonia
Patterson, G. G., (1969)
Estimated world fertilizer production capacity as related to future needs 1967 to 1972-80
(1968)