TY  - BOOK
AU  - Wells,Martin John
TI  - Lower animals
T2  - World university library
AV  - QL362 .W36
U1  - 592 
PY  - 1968///]
CY  - New York
PB  - McGraw-Hill
KW  - Invertebrates
KW  - Local
N1  - Bibliography: p. [244]-249
ER  -