TY  - BOOK
AU  - Harmer,S.F,ed.
AU  - Shepley,A.E [ed.]
TI  - The Cambridge natural history , Vol. II: Flatworms and Mesozoa;Nemertines,Rotifers,Thread-Worms,Sagitta,Gephyrea and Phoronis;Earthworms and Leeches;Polychaet Worms and Polyzoa
U1  - 590 
PY  - 1970///
CY  - England
PB  - Wheldon &Wesley,Ltd.
ER  -