Amin, Afaf Hamdi. <br/><br/>
Studies on vaccines and vaccination against gumboro disease   [microform]/ 
Afaf Hamdi Amin. 
 -  1990. 
 - 104, 2 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.) -- Cairo University, 1990.+PDF 
<br/><br/>Includes bibliographical reference (leaves 85-104) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>2 microfiche : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vaccines.<br/>Vaccination.<br/>Poultry--Virus diseases.