TY  - BOOK
AU  - Hoefnagels, Marielle.
TI  - Biology: Concepts and investigations
SN  - 9780077683269
AV  - QH 307.2 .H64 2012 
PY  - 2012///
CY  - New york
PB  - Mc Graw hill, 
KW  - Biology
N1  - Includes bibliographical references and index
ER  -