Water plants of the world :   a manual for the identification of the genera of freshwater macrophytes /  
by Christopher D. K. Cook ... [et al.]. 
 - The Hague :   W. Junk,   1974. 
 - viii, 561 p. :   il. 
<br/><br/><label>ISBN: </label>9061930243 
<br/><br/><label>LCCN: </label>75307442  
<br/><br/><label>Nat. Bib. No.: </label>Ne74-46 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas de água doce--Identificação.
<br/><br/><label>Dewey Class. No.: </label>581.929