Arab Fertilizer Association. (2005). AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. Arab Fertilizer Association.
Chicago-viite (17. p.)Arab Fertilizer Association. AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. cairo: Arab Fertilizer Association, 2005.
MLA-viite (9. p.)Arab Fertilizer Association. AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. Arab Fertilizer Association, 2005.
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