World Health Organization. (2002). Helminth control in school-age children: A guide for managers of control programmes (Segunda edición.). Word Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization. Helminth Control in School-age Children: A Guide for Managers of Control Programmes. Segunda edición. Geneva: Word Health Organization, 2002.
MLA-Zitierstil (8. Ausg.)World Health Organization. Helminth Control in School-age Children: A Guide for Managers of Control Programmes. Segunda edición. Word Health Organization, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.