Hagberg, Arne. <br/><br/>
Mutations and polyploidy in plant breeding / 
[by] Arne Hagberg [and] Erik Akerberg. 
 - London :  Heinemann,  [1962, c1961] 
 - Scandinavian university books .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant breeding.<br/>Polyploidy.<br/>Plants -- Variation.--Plants -- Variation.