TY  - BOOK
ED  - ECE Symposium on Problems Relating to Environment (1971 : Prague)
ED  - United Nations. Economic Commission for Europe.
TI  - Proceedings and documentation of the Symposium organized by the United Nations Economic Commission for Europe and held from 2 to 15 May 1971 in Prague
PY  - 1971///
CY  - New York
PB  - United Nations
KW  - Environmental engineering
KW  - Congresses
KW  - Environmental policy
N1  - 'United Nations publication. Sales number: E.71.II.E.6.'; Includes bibliographical references
ER  -