Ashton, T.  <br/><br/>
The use of heterosis in the production of agricultural and horticultural crops  (Book) 

 - Cambridge  Commonwealth Bureau of Plant Breeding and Genetics School of Agriculture  1946 
 - 30 p.  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hybridization, Vegetable Plant breeding
<br/><br/><label>Universal Decimal Class. No.: </label>631.527.52 ASH  / 6596