TY  - BOOK
AU  - x, x
AU  - Efremov,L.N.
TI  - Environmental Management in the USSR: Collection of Papers (issue 6)
SN  - x
U1  - 574.5/E61 
PY  - 1987///
CY  - Moscow
PB  - Viniti
KW  - Ecology
N1  - x
ER  -