SILK, N. (2004). A Practitioner's Guide To Freshwater Biodiversity Conservation. Washington DC: Island Press.
Παραπομπή Chicago StyleSILK, Nicole. A Practitioner's Guide To Freshwater Biodiversity Conservation. Washington DC: Island Press, 2004.
Παραπομπή MLASILK, Nicole. A Practitioner's Guide To Freshwater Biodiversity Conservation. Washington DC: Island Press, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.