Nehad Khalifa Sayed Ahmed <br/><br/>
Study on the impact of industrial wastes at helwan on river nile zooplankton /  
 دراسة على تاثير المخلفات الصناعية بمنطقة حلوان على الهوام الحيوانية بنهر النيل 
Nehad Khalifa Sayed Ahmed ; Supervised Rasmy Boulos , Samira A.Salem , Ahmed I.Naguib 
 - Cairo :   Nehad Khalifa Sayed Ahmed ,   2000 
 - 141P. :   ill. ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty Of Science - Department Of Zoology 
<br/><br/><label>Subjects--Index Terms: </label>mpact of industrial River nile zooplankton wastes at helwan