TY  - BOOK
AU  - Nicholson, E.M. Comp.
TI  - Handbook to the conservation section of the International biological programme
U1  - 333.9516 21st ed.
PY  - 1968///
CY  - Oxford
PB  - Blackwell Scientific Publications
KW  - Ecosystem management
KW  - Biological diversity conservation
KW  - Wildlife consevation
KW  - Nature consevation
ER  -