APA (7th ed.) Zitazioa
World Health Organization. (2014). Guidelines for the identification and management of substance use and substance use disorders in pregnancy. World Health Organization.
Chicago Style (17th ed.) Zitazioa
World Health Organization. Guidelines for the Identification and Management of Substance Use and Substance Use Disorders in Pregnancy. Ginebra: World Health Organization, 2014.
MLA (9th ed.) Zitazioa
World Health Organization. Guidelines for the Identification and Management of Substance Use and Substance Use Disorders in Pregnancy. World Health Organization, 2014.
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