Hossam Fawzy Osman Aly <br/><br/>
The role of veterinary extension service in improving the standards of hygiene in poultry farms /  
 دور الارشاد البيطرى فى تحسين مستويات الصحة فى مزارع الدواجن 
Hossam Fawzy Osman Aly ; Supervised A. M. Alwakeel , S. T. Moubarak , S. A. Abuhalima 
 - Cairo :   Hossam Fawzy Osman Aly ,   1998 
 - 129Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis(M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Veterinary Hygiene and Management