Hellar, h. <br/><br/>
Mathermatical modelling predator pre model 

 - Dar es Salaam  Mathematics Department University of Dar es Salaam  1988 
 - iii,39p.  : ill.  ; 30cm. 
<br/><br/><label>LC Class. No.: </label>MATH RES QH545.P73H44