Brown, D. S. (1980). Freshwater snails of Africa and their medical importance.
Chicago-Zitierstil (17. Ausg.)Brown, David Seymour. Freshwater Snails of Africa and Their Medical Importance. 1980.
MLA-Zitierstil (9. Ausg.)Brown, David Seymour. Freshwater Snails of Africa and Their Medical Importance. 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.