Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms File Size : 45,45 MB Total View : 8619 Views DOWNLOAD
Identification Guide to the Freshwater Leeches (Annelida:Hirudinea) of Florida and Other Southern States File Size : 48,48 MB Total View : 6018 Views DOWNLOAD
A Guide to the Freshwater Tubificidae (Annelida : Clitellata : Oligochaeta) of North America File Size : 95,95 MB Total View : 5031 Views DOWNLOAD
Freshwater Leeches (Annelida: Hirudinea) of North America File Size : 72,72 MB Total View : 513 Views DOWNLOAD
A Guide to the Naididae (Annelida, Clitellata, Oligochaeta) of North America File Size : 65,65 MB Total View : 6116 Views DOWNLOAD