{{sfn | Pimm | 2002 | p=}}

* {{cite book | last=Pimm | first=Stuart L. | title=Food Webs | publisher=University of Chicago Press | publication-place=Chicago | date=2002-05-30 | isbn=978-0-226-66832-1}}

<ref name="j724">{{cite book | last=Pimm | first=Stuart L. | title=Food Webs | publisher=University of Chicago Press | publication-place=Chicago | date=2002-05-30 | isbn=978-0-226-66832-1 | page=}}</ref>