(2021). School closures and teenage pregnancy. Bull World Health Organ.
Citação norma Chicago"School Closures and Teenage Pregnancy." Bull World Health Organ 2021.
ציטוט MLA"School Closures and Teenage Pregnancy." Bull World Health Organ 2021.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.