TY - BOOK ID - 14442501 TI - World day for water 22 March 1998 : Theme of the day : "Groundwater : The invisible resource" AU - United Nations Information Centre for Belgium, the Netherlands and Luxembourg AU - United Nations Liaison Office with the Institutions of the European Union AU - International Atomic Energy Agency ( IAEA ) AU - United Nations International Children's Emergency Fund ( UNICEF ) AU - United Nations Educational, Scientific and Cultural Organization ( UNESCO ) AU - United Nations Department of Economic and Social Affairs ( UNDESA ) AU - World Meteorological Organization ( WMO ) PY - 1998 PB - Brussels DB - UniCat KW - CON Bioconservation KW - groundwater KW - nature conservation KW - proceedings UR - https://www.unicat.be/uniCat?func=search&query=sysid:14442501 AB - ER -