List of plant breeders in Canada and the United States of America / 
Food and Agriculture Organization United Nations 
 - Washington :  FAO,  1949 
 - vii, 64 p. :  ill. ;  30 cm. 
<br/><br/> A references list of classified information giving the addresses and actities of plant breeders in these countries 
<br/><br/>Supplement :World list of plant breeders(1952), iv, 105 p. 
<br/><br/><label>LCCN: </label>50-001623 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant breeding--Directories<br/>Agricultural machinery<br/>Seeds
<br/><br/><label>Dewey Class. No.: </label>631.5206