international annual conference )cairo & the arab fertilizer association. (2003). proccedings of 9th international annual conference 28-30th january 2003-cairo. the arab fertilizer association.
Cita Chicago (17th ed.)international annual conference )cairo i the arab fertilizer association. Proccedings of 9th International Annual Conference 28-30th January 2003-cairo. cairo: the arab fertilizer association, 2003.
Cita MLA (9th ed.)international annual conference )cairo i the arab fertilizer association. Proccedings of 9th International Annual Conference 28-30th January 2003-cairo. the arab fertilizer association, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.