APA (7th ed.) Zitazioa
Kramer, M. S., & Kakuma, R. (2002). The optimal duration of exclusive breastfeeding: A systematic review. Dept. of Nutrition for Health and Development, Dept. of Child and Adolescent Health and Development, World Health Organization.
Chicago Style (17th ed.) Zitazioa
Kramer, Michael S., eta Ritsuko Kakuma. The Optimal Duration of Exclusive Breastfeeding: A Systematic Review. Geneva: Dept. of Nutrition for Health and Development, Dept. of Child and Adolescent Health and Development, World Health Organization, 2002.
MLA (9th ed.) Zitazioa
Kramer, Michael S., eta Ritsuko Kakuma. The Optimal Duration of Exclusive Breastfeeding: A Systematic Review. Dept. of Nutrition for Health and Development, Dept. of Child and Adolescent Health and Development, World Health Organization, 2002.
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