TY - BOOK AU - United Nations Economic Commission for Europe ED - United Nations Economic Commission for Europe TI - Engineering equipment and automation means for waste water management in ELE countries T2 - ECE Working party on engineering industries and automaiton U1 - "X9(D855).5.N8, M4.1-2/UN" PY - 1984/// CY - New PB - York United Nations USA KW - Electrical ER -