Екологија — разлика између измена

 

== Литература ==

* {{Cite book|ref=harv|author=Smith, Robert Metcalf |author2=Smith, Thomas Edward |title=Elements of ecology |publisher=Pearson Benjamin Cummings | location = San Francisco |year=2009|isbn=978-0-321-55957-9 | oclc = | doi = | }

* {{Cite book|ref=harv|last=Hacker|first=Sally|last2=Cain|first2=Michael L.|author3=Bowman, William Dodgson |title=Ecology |publisher=Sinauer Associates | location = Sunderland, Mass |year=2008|isbn=978-0-87893-083-8 | oclc = | doi = | }