TY  - BOOK
AU  -  Hegner,Robert W.
AU  -  Engemann,Joseph G
TI  -  Invertebrate zoology
SN  -  9780023337802
U1  - 592 
PY  - 1968///
CY  - New York, London
PB  - Macmillan
KW  - Zoology
N1  - includes index.
ER  -