TY  - BOOK
AU  - Mann,K. H.
TI  - Leeches ,hirudinea ; their structure,physiology,ecology and embrylogy
T2  - International series of monographs on pure and applied biology;v.11
U1  - 595.145 
PY  - 1962///
CY  - New York
PB  - Pergamon Press
ER  -