TY  - BOOK
T1  - Laboratory and field studies in biology;a sourcebook for secondary schools.
DA  - [c1960]
CY  - New York,
AU  - Lawson, Chester A.
AU  - Paulson, Richard E.,
CN  - QH317 .L32
CN  - QH317
PB  - Holt, Rinehart and Winston
PP  - New York,
PY  - [c1960]
ID  - 62904
KW  - Biology
TI  - Laboratory and field studies in biology;a sourcebook for secondary schools.
ER  -