References

 

Animals, a visual encyclopedia. Smithsonian. 2012. Pp. 240, 241.

Enciclopedia del mundo animal. Parragon, 2013. Pp. 208, 209.

Srivastava. Problem of Land Snail Pests in Agriculture: A Study of the Giant African Snail. Concept Publishing Company, 1992.

http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7427.html

http://entomology.ifas.ufl.edu/creatures/misc/gastro/brown_garden_snail.htm

http://www.bbc.com/news/uk-england-surrey-18608746

http://en.wikipedia.org/wiki/Land_snail