TY  - BOOK
AU  - Harmer, S.F.
AU  - Shipley, A.E.
TI  - Cambridge Natural History 
U1  - 591 21st ed.
PY  - 1896///
CY  - New York
PB  - Macmillan and co.ltd
KW  - Natural History, Trematodes, Cestoda, Mesozoa
ER  -