TY  - BOOK
AU  - Usher, M.B.
TI  - Biological management and conservation ecological theory, application and planning: M.B. Usher
SN  - 412-113309.
U1  - 581.5, 
PY  - 1973///
CY  - London
PB  - Chapman and Hall
KW  - Plant - ecology Ecophysiology Plant - ecophysiology
ER  -