TY  - BOOK
AU  - EWER, D.W / HALL, J.B.
TI  - ECOLOGICAL BIOLOGY TEACHER'S GUIDE 1
SN  - 0582606470
AV  - QH316.5.E9 1975 
PY  - 1975///
CY  - HONG KONG
PB  - LONGMAN 
ER  -