de Vries, J.N. <br/><br/>
Cytogenetic approaches to breeding and propagation of male sterile parent lines 
/by J.N. de Vries 
 - Wageningen  Landbouwhogeschool te Wageningen  1984 
 - 128 pages 
<br/><br/><label>Dewey Class. No.: </label>633.14  / DEV