Goher, Laila Mohamed Ahmed. <br/><br/>
A study of lethal factors in ducks  [microform] / 
 دراسة العوامل المميتة في بيض البط. 
Laila Mohamed Ahmed Goher. 
 -  1979. 
 - 122, 3 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)-- Cairo University, 1979. 
<br/><br/>Includes bibliographical references (leaves 98-122). 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>3 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ducks--Eggs.<br/>Ducks--Diseases.