Curtis, Valerie Happy, healthy and hygienic : how to set up a hygiene promotion p rogramme / Valerie Curtis and Bernadette Kanki - New York : United Nations Children's Fund , 1998 - 26 p. : ill. ; 21 cm. - WES Technical Guidelines Series; no.5 . v.2 - Risk practices, target practices Includes bibliographical references (p.26) Subjects--Topical Terms: Hygiene. Dewey Class. No.: 613