TY  - BOOK
AU  - Nelson,Gideon E.
AU  - Ray,James Davis
TI  - Contemporary readings in biology / 
SN  - 0471631566
U1  - 574.08 
PY  - 1974///
CY  - New York : 
PB  - John Wiley & Sons, 
KW  - Biologia
ER  -