TY  - BOOK
AU  - Kilburn,Robert E.
AU  - Howell,Peter S.
ED  - Allyn and Bacon 
TI  - Exploring life science: teacher΄s guide with tests 
SN  - 0205067298
U1  - 570.71 23
PY  - 1981///.
CY  - Boston: 
PB  - Allyn and Bacon, 
KW  - Biology
KW  - Study and teaching
ER  -