international annual conference )cairo & the arab fertilizer association. (2003). proccedings of 9th international annual conference 28-30th january 2003-cairo. the arab fertilizer association.
Chicago-čujuhus (17. p.)international annual conference )cairo juo the arab fertilizer association. Proccedings of 9th International Annual Conference 28-30th January 2003-cairo. cairo: the arab fertilizer association, 2003.
MLA-čujuhus (9. p.)international annual conference )cairo juo the arab fertilizer association. Proccedings of 9th International Annual Conference 28-30th January 2003-cairo. the arab fertilizer association, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.