TY  - GEN
AU  - Hatem Mohamed Toughan Soliman Hekal
AU  - Mohamed Hussen Hasan Awaad , 
AU  - Mohamed Mahmoud Mahmoud Zaki , 
AU  - Roukaya Mohamed Osman , 
TI  - Studies on infectious coryza in laying chicken flocks / 
PY  - 1999///
CY  - Cairo : 
PB  - Hatem Mohamed Toughan Soliman Hekal , 
N1  - Thesis (M.Sc.) - Cairo University - Faculty Of Veterinary Medicine - Department Of Animal Diseases
UR  - http://172.23.153.220/th.pdf
ER  -