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- Vitamin A deficiency and its consequences: a field guide to detection and control / Alfred Sommer . - 3rd ed. - Geneva : WHO , 1995 - 69 s. ISBN 92-4-154478-3 [1, currently available 1]
- Chapters, articles
book
- Vitamin A supplements : a guide to their use in the treatment and prevention of vitamin A deficiency and xerophthalmia . - 2nd ed. - Geneva : WHO , 1997 - 6, 28 s. ISBN 92-4-154506-2 [1, currently available 1]
- Chapters, articles
book
- Vitamin A supplements : a guide to their use in the treatment and prevention of vitamin a deficiency and xerophthalmia - Geneva : WHO , 1988 - 24 s. [2, currently available 2]
- Chapters, articles
book
- Vyjavlenije i lečenie kseroftaľmii : praktičeskoe rukovodstvo / Alfred Sommer . - 2. vyd. - Ženeva : Vsemirnaja organizacija zdravoochranenija , 1987 - 61 s. [1, currently available 1]
- Chapters, articles
book