Improvement of some economical traits in chickens [microform]/
تحسين بعض الصفات الأقتصادية فى الدجاج.
Bayoumi Tawfeek Bayoumi Sherif.
- 1991.
- 212, 12 leaves : ill. ; 30 cm.
Thesis (Ph.D.) -- Minufiya University, 1991.
Includes bibliographical references (leaves 191-212)