TY  - BOOK
AU  - Distefano,Matthew
TI  - Homework helpers
SN  - 1564147207 (paper)
AV  - QH307.2 .D57 2004 
PY  - 2004///
CY  - Franklin Lakes, NJ
PB  - Career Press
KW  - Biology
N1  - Includes index
ER  -