TY  - BOOK
AU  - Levine,Joseph S.
AU  - Miller,Kenneth R
TI  - Biology: animals systems  
T2  - Biology : discovering life
SN  - 0669288438
U1  - 571.1 19
PY  - 1992///
CY  - Lexington, Mass.
PB  - D. C. Heath and Company
KW  - Animals
KW  - Spines
KW  - Biology
N1  - Bibliography : p. A04; ls
N2  - Environment Management
ER  -