TY  - BOOK
AU  - Ewer, D. W.
AU  - Hall, D. W.
AU  - Mitchelmore, June
TI  - Ecological biology: teacher's guide 1 / 
SN  - 0582606470
AV  - QH541.2 .93
PY  - 1981///
CY  - London
PB  - Longman
KW  - Ecology
N1  - includes index
ER  -