TY  - BOOK
AU  - Enger, E.D. and Frederick C. Ross
TI  - Concepts in Biology 
SN  - 0-07-234694-9
AV  - QH 308.2 E54 2003 C.5
PY  - 2003///
CY  - Boston
PB  - McGrawhill
KW  - Biology
ER  -