TY  - BOOK
AU  - Hansen,J.Aa
TI  - Environmental concerns: an inter-disciplinary exercise 
SN  - 1851667121
PY  - 1991///
CY  - London
PB  - Elsevier Applied Science
KW  - Ecology
KW  - Congresses
KW  - Human ecology
KW  - Environmental protection
ER  -