APA-čujuhus (7. p.)
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-čujuhus (17. p.)
Kramer, Michael S., juo 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-čujuhus (9. p.)
Kramer, Michael S., juo 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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