TY  - BOOK
AU  - Hegner Robert W
AU  -  Engemann Joseph G
TI  - Invertebrate zoology
U1  - K1, K81-;1 
PY  - 1968///
CY  - London
PB  - Macmillan         
KW  -  Invertebrates
KW  - Zoology
ER  -