World Bank, FAO, Naciones Unidas Organización para el Desarrollo Industrial, & Industry Fertilizer Working Group. (1995). World and regional supply and demand balances for nitrogen, phosphate, and potash, 1993/94-1999/2000. Washington, D.C.: The World Bank.
Citación estilo ChicagoWorld Bank, FAO, Naciones Unidas Organización para el Desarrollo Industrial, y Industry Fertilizer Working Group. World and Regional Supply and Demand Balances for Nitrogen, Phosphate, and Potash, 1993/94-1999/2000. Washington, D.C.: The World Bank, 1995.
Cita MLAWorld Bank, FAO, Naciones Unidas Organización para el Desarrollo Industrial, y Industry Fertilizer Working Group. World and Regional Supply and Demand Balances for Nitrogen, Phosphate, and Potash, 1993/94-1999/2000. Washington, D.C.: The World Bank, 1995.