Não informado. (1991). Aquatic Conservation: Marine and freshwater ecosystems. John Wiley & Sons.
Chicago-Zitierstil (17. Ausg.)Não informado. Aquatic Conservation: Marine and Freshwater Ecosystems. Chichester, Inglaterra: John Wiley & Sons, 1991.
MLA-Zitierstil (8. Ausg.)Não informado. Aquatic Conservation: Marine and Freshwater Ecosystems. John Wiley & Sons, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.