Sheep breeding / 
edited by G.J. Tomes, D.E. Robertson, and R.J. Lightfoot ; rev. by William Haresign 
 - 2nd ed. 
 - London:  Butterworths,  1979. 
 - 580 p. :   ill. ;   25 cm. 
<br/><br/> Earlier ed. (1976) issued as the proceedings of the International Sheep Breeding Congress with title: Sheep breeding. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0408106336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sheep--Breeding--Congresses.