Vervoort, Willem  1917-2010 <br/><br/>
Hydroids from the theta, vema and  yelcho cruises of the lamont-doherty geological observatory / 
W. Vervoort. 
 -- Leiden :   E.J. Brill,   1972 
 - 247 p.  il. -- 
 (Zoologische Verhandelingen  ; 120).
<br/><br/> Fecha real de registro 24-05-1972 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hidrozoos
<br/><br/><label>Universal Decimal Class. No.: </label>593.7