مقالة · مجلة · 1983

Newcastle disease in a vaccinated flock which had experienced subclinical infectious bursal disease

Tropical Animal Health and Production

المؤلفون

مؤلفان

John O. Okoyeالمؤلف الأول
- University of Nigeria (NG)
كما طُبع: J. O. A. Okoye
Vincent Shoyinkaالمؤلف الرئيسي
- University of Nigeria (NG)
كما طُبع: S. V. O. Shoyinka