URL OAI
Colloquy on Environment in Europe : Co-operation between Local and Regional Authorities (1991. Siófok, Hungary)
Strasbourg : Council of Europe Press, 1992 . — 134 p. : gráf., il. ; 29 cm
( Studies and texts ; 21)
En port.: standing conference of local and regional authorities of Europe
ISBN 92-871-2058-7
9.0.0
Política ambiental Europa