Gopalsamy, K <br/><br/>
Stability and oscaillations in delay differential equations of population dynamics   
by K Gopalasamy 
 - Dordrecht  Kluwer Academic  1992 
 - 501p. 
 - Mathematics and its applications  74 .
<br/><br/><label>ISBN: </label>0792315944 
<br/><br/><label>Dewey Class. No.: </label>574.50151535  / N92