Helbling, E Walter <br/><br/>
Factors affecting phytoplankton distribution and production in the Elephant Island area, Antarctica /  
E Walter Helbling 
 - San Diego :  University of California,   1993 
 - xxiii, 222 p 
<br/><br/> A dissertation submitted in partial satisfaction of the  requirement for the degree doctor of philosophy in marine biology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>FITOPLANCTON <br/>ECOLOGIA<br/>FITOECOLOGIA<br/>MICROORGANISMOS<br/>TESIS
<br/><br/><label>Dewey Class. No.: </label>574.526 36