GRENFELL, B T. <br/><br/>
Ecology of Infectious Diseares in Natural Populations. 

 - Cambridge.  Cambridge University Press.  1995 
 - xii, 521p. 
<br/><br/><label>ISBN: </label>0 521 46502 8 
<br/><br/><label>Dewey Class. No.: </label>577.857