TY  - BOOK
AU  - Conference on "Environmental future", Finland, 27 June-3 July, 1971
AU  - Polunin, Nicholas ; ed.
TI  - The environmental future: ; proceedings of the first International conference 
U1  - 304.2 
PY  - 1972///
CY  - London
PB  - Macmillan
ER  -