United Nations Economic Commission for Europe. (1981). Environmental Impact Assessment. ELSEVIER.
Cita Chicago (17th ed.)United Nations Economic Commission for Europe. Environmental Impact Assessment. ELSEVIER, 1981.
Cita MLA (8th ed.)United Nations Economic Commission for Europe. Environmental Impact Assessment. ELSEVIER, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.