International Botanical Congress, 11th. <br/><br/>
International code of botanical nomenclature adopted by the eleventh International Botanical.... 

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 - Utrecht - HOLA  International Bureau for plant taxonomy and nomenclature  1972 
 - 426p.  24 cm 
 - Regnum Vegetabile   v.82 .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Botanica--Congresos--<br/>Botanica