Selgsõudur
Eesti Loodus, 5. Külastatud aadressil
http://www.loodusajakiri.ee/eesti_loodus/artikkel706_704.html.
Water boatman, common backswimmer (s.a.). Külastatud aadressil http://www.bbc.co.uk/nature/wildfacts/factfiles/428.shtml.
Kasutatud allikad
pildid
http://farm3.staticflickr.com/2466/4514198177_a5b4c199a7_z.jpg
http://farm9.staticflickr.com/8081/8408775669_827f422871_z.jpg
http://static3.nagi.ee/i/p/642/38/16059583322527_m.jpg/1
http://www.fugleognatur.dk/forum/images/IMG_146510%20rygsv
%C3%A6%C3%B8mmer%203.jpg
http://www.waterwereld.nu/images/ruggezwemmer12.JPG
annaabi.ee 
