Network analysis in marine ecology :  methods and applications / 
F. Wulff, J. G. Field (Eds.). 
 - Berlin :  Springer-Verlag,  1989. 
 - 284 p. :  ill. ;  25 cm. 
 - Coastal and estuarine studies  32 .
<br/><br/><label>ISBN: </label>3540516034