00289nam a2200097Ia 4500080001800000245007700018260002400095300002800119500002700147583001700174 a17.02.01 N714 aThe 1997-1998 El Niño event : a scientific and technical retrospective bWMOaGenevaCHc1999 a96 p. : col. ill , maps aBibliography: p. 92-94 c2/8/07kJOYD