TY  - BOOK
AU  - Buchsbaum,Ralph
TI  - Animals without backbones: an introduction to the invertebrates 
U1  - 592 23
PY  - 1938///, 1948 , [Impression 1967]
CY  - London
PB  - Univ. of Chicago Press
KW  - Invertebrates
ER  -