Hunton, P. <br/><br/>
Genetics of egg shell colour :    covariance with egg number and egg size /  
P. Hunton. 
 - Ashford, Kent  :    Wye College,    [n.d.] 
 - 45-48 p. :    ill. ;    25 cm. 
 - Reprint ;    no. 247 .
<br/><br/>Includes bibliographical reference. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Genetic regulation.<br/> Egg shells.