TY  - BOOK
AU  - Hansson, Lennart,
TI  - Ecological principles of nature conservation: Applications in temperature and boreal environments 
T2  - Conservation ecology series
SN  - 1851667180
AV  - QH75 E355
PY  - 1992///
CY  - London
PB  - Elsevier applied science
KW  - Conservación de la naturaleza
KW  - Ecología
ER  -