Amal Ahmed Hassanein  <br/><br/>
Comparative toxicity and tolerance for some insecticides in a laboratory and field strains of cotton leafworm /  
 مقارنة سمية وتحمل بعض المبيدات في سلالات دودة ورق القطن المعملية والحقلية 
Amal Ahmed Hassanein ; Superivsed Mohamed Abdelhaddy Kandil , Nabil Mahfouz Ibrahim , Mohamed Nabil Foaad Shaaban 
 - Cairo :   Amal Ahmed Hassanein ,   1999 
 - 177 leaves ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Economic Entomology and Pesticides