"Pijawki klasyfikacja." . . . . "Anèl·lids." . . . . . . . . . . . . . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology. With an appendix on the systematics of marine leeches"@en . . . "Leeches : (\"Hirudinea\"), their structure, physiology, ecology and embryology, by K. H. Mann,... With an appendix on the systematics of marine leeches, by Prof. E. W. Knight-Jones" . . "Leeches, hirudinae : their structure, physiology, ecology and embryology... with an appendix on the systematics of marine leeches" . . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology. With an appendix on the systematics of marine leeches / by E.W. Knight-Jones" . "Leeches (Hirudina) Their structure, physiology, ecology and embryology" . "Leeches (Hirudinea); their structure, physiology, ecology and embryology" . . . . . "Leeches (Hirudinea): their structure, physiology, ecology and embryology"@en . "Leeches (Hirudinea): their structure, physiology, ecology and embryology" . "Leeches (Hirudinea) : their structure, physiology, ecology and embyrology"@en . . "Leeches-Hirudinea: their structure, physiology, ecology and embryology ... With an appendix on the systematics of marine leeches by Prof. E.W. Knight-Jones. [With plates.]"@en . . . . . . . . . . "Leeches <Hirudinea>" . "Electronic books"@en . . "Leeches (Hirudinea) their structure, physiology, ecology and embryology. With an appendix on the systematics of marine leeches"@en . "Leeches (hirudinea) : their structure, physiology, ecology and embryology" . . "Leeches (hirudinea) : their structure physiology, ecology and embriology" . . . . . . . . . . . . "Leeches (Hirudinea) their structure, physiology, ecology and embryology" . "Leeches (Hirudinea) their structure, physiology, ecology and embryology"@en . . . . "Leeches (Hirudinea) their structure, physiology, ecology and embryology : With an appendix on the systematics of marine leeches"@en . . . . . . . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology ; with an appendix on the systematics of marine leeches" . "Leeches (Hirudinea) their structure, physiology, ecology and embryology, with an appendix on the systematics of marine leeches"@en . . . . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology" . . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology"@en . . . "Systematics of marine leeches" . "Leeches (Hirudinea) : their structure, physiology, ecology and embryology : with an appendix on the systematics of marine leeches" . . "détermination (biologie) hirudiné." . . "Sangsues." . . "Polychètes." . . "Lombric terrestre." . . "Annélides." . . "Ecology." . . "Leeches Great Britain." . . "SCIENCE Life Sciences Zoology General." . . "Blutegel." . . "Pijawki." . . "Oligochète." . . "Fisiologia animal." . . "Leeches." . .