World list of plant breeders :   Supplement to List of plant breeders in Canada and the United States of America, published in September 1949 / 
Food and Agriculture Organization of the United Nations. 
 - Rome :  UN (FAO),  1952 
 - iii,105 p.  28 cm. 
<br/><br/><label>ISBN: </label> : USD 1.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant breeding--Directories.--North America
<br/><br/><label>Dewey Class. No.: </label>631.520257  / FOW 1952