00538nam a22001937a 4500003000800000008004100008020001800049041001200067082001800079245004800097250001300145260004700158300002200205650001800227650002300245650002300268650001800291650003500309WUSLLib250228b        |||||||| |||| 00| 0 eng d  a9789241547772  aEnglish  a616.9802bGUI  aGuide to hygiene and sanitation in aviation  a03rd ed.  aGeneva:bWorld Health Organization;c2009.  axii, 59p.;c21cm.  aGeneral issue  aWater requirements  aWater safety plans  aWater quality  aSanitary condition of aircraft