United Nations Economic Commission for Europe. (1983). Efficient use of fertilizers in agriculture. New York: The United Nations.
Styl cytowania ChicagoUnited Nations Economic Commission for Europe. Efficient Use of Fertilizers in Agriculture. New York: The United Nations, 1983.
Styl cytowania MLAUnited Nations Economic Commission for Europe. Efficient Use of Fertilizers in Agriculture. New York: The United Nations, 1983.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..