Mann, K. H. 1923- Leeches hirudinea : Their structure, physiology, ecology and embyology / With an appendix on the systematics of marine leeches, by e. w. knight Jones. - 201 páginas - International series of monographs on pure and applied biology ; v.11 . Subjects--Topical Terms: Sanguijuelas LC Class. No.: QL391.H6 / M33