World Health Organization, Centers for Disease Control and Prevention, & International Clearinghouse for Birth Defects Surveillance and Research. (2014). Birth defects surveillance a manual for programme managers. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization, Centers for Disease Control and Prevention, und International Clearinghouse for Birth Defects Surveillance and Research. Birth Defects Surveillance a Manual for Programme Managers. Geneva, switzerland: World Health Organization, 2014.
MLA-Zitierstil (8. Ausg.)World Health Organization, et al. Birth Defects Surveillance a Manual for Programme Managers. World Health Organization, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.