TY  - GEN
AU  - Hopson Janet L.
TI  - Essentials of biology
SN  - 0075571080
U1  - 574 
PY  - 1990///
CY  - NewYork
PB  - McGrawHill
KW  - Study of life
KW  - Plant
KW  - biology
KW  - Animal
KW  - Population
ER  -