?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Ayoub%2C+Mohamed&rft.aulast=Ayoub&rft.aufirst=Mohamed&rft.date=June+2002&rft.title=Study+on+the+introduction+of+organic+tomato+greenhouse+in+Massa+plain%2C+Agadir%2C+South+Morocco&rft.inst=Mediterranean+agronomic+institute+of+bari