Hybrid chickens 

 - London :  Her Majesty's Stationery Office,  1959 
 - 39 p 
 - Her Majesty's Stationery Office. Bulletin  ; 180 .
 - Her Majesty's Stationery Office. Bulletin  ; 180 .
<br/><br/><label>LCCN: </label>14937 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aves de corral--Cruzas.<br/>Aves de corral--Mejoramiento.<br/>Pollos para el asador.