{{cite web | url=http://www.europeana.eu/resolve/record/10106/25B197472BDB0EB9DEB103212B841F2698D4DF80|title=Aves Grallatores - plate 1|author=Reichenbach, H.G.L.|accessdate=2013-05-25 |publisher=Europeana}}

<ref>{{cite web | url=http://www.europeana.eu/resolve/record/10106/25B197472BDB0EB9DEB103212B841F2698D4DF80|title=Aves Grallatores - plate 1|author=Reichenbach, H.G.L.|accessdate=2013-05-25 |publisher=Europeana}}</ref>