Dyfyniad APA

Arab Fertilizer Association. (2005). AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. Arab Fertilizer Association.

Dyfyniad Arddull Chicago

Arab Fertilizer Association. AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. cairo: Arab Fertilizer Association, 2005.

Dyfyniad MLA

Arab Fertilizer Association. AFA 11th International Annual Fertilizer Conference, 1-3 February 2005, Cairo. Arab Fertilizer Association, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.