Freytag, George F.  1928- <br/><br/>
Taxonomy, distribution, and ecology of the genus Phaseolus (Leguminosae-Papilionoideae) in North America, Mexico and Central America /  
George F. Freytag  and Daniel G. Debouck. 
 -- Fort Worth, Texas :    Botanical Research Institute of Texas,    2002. 
 - XVIII, 300 p. :   il.  
 (Sida. Botanical miscellany, ISSN 0833-1475 ; ; 23).
 - Sida. Botanical miscellany, ISSN 0833-1475 ;  23 .
<br/><br/>ISBN 1889878111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Judías --América central<br/>Judías --América del Norte<br/>Judías --México
<br/><br/><label>Universal Decimal Class. No.: </label>582(7)