Enciclopedia del mundo animal. Parragon, 2013. Pp. 181, 182, 186.
Uhlenbroek, Charlotte. Vida animal. Pearson Alhambra, 2009. Pp. 128, 271, 365, 416, 439, 461, 485.
Simmonds, Mark. Whales and Dolphins of the World. New Holland Publishers, 2007.
Bird, Jonathan. Wildlife monographs. Dolphins. Evans Mitchell Books, 2007.
Animals, a visual encyclopedia. Smithsonian – DK publishing, 2008. Pp. 52, 60, 61.
World of animals Magazine. Imagine publishing. Pp. 71-74
http://www.nmfs.noaa.gov/stories/a/species/dolphins/index.html
http://en.wikipedia.org/wiki/Dolphin
http://www.savejapandolphins.org/
http://species-identification.org/index.php?groep=Dolphins+and+porpoises&selectie=46&hoofdgroepen_pad=%2C1%2C11%2C46
http://www.bluevoice.org/
http://seaworld.org/en/animal-info/animal-infobooks/bottlenose-dolphins/