TY  - BOOK
AU  - Wratten, Stephen D.
AU  - Fry, Glary L.A.
TI  - Field and laboratory exercises in ecology
SN  - 0713127252
U1  - 574.5076 WRA 
PY  - 1980///
CY  - London
PB  - Edward Arnold limited
KW  - Field and laboratory exercises in ecology
N1  - Includes references and index
ER  -