Éditeur(s) : Instituto de Ciencia y Tecnologâia AgrâicolasInstituto de Ciencia y Tecnologâia Agrâicolas ( Guatemala C.A ) Résumé : (Statement of Responsibility) Carroll Behrhorst ; in collaboration with E.P. Mach. Cover title. "... published in Health by the People, World Health Organization, Geneva, April 1975." Guatemala -- Chimaltenango Guatemala Chimaltenango (Dept.) Guatemala Chimaltenango (Dept.) Guatemala Chimaltenango (Dept.) Chimaltenango (Guatemala : Dept.)