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)


Hygiene.

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