McLaren, D. S. (1999). Towards the conquest of Vitamin A deficiency disorders. Task Force Sight and Life.
Lua i Stíl Chicago (17ú heag.)McLaren, Donald Stewart. Towards the Conquest of Vitamin A Deficiency Disorders. Basel, Switzerland: Task Force Sight and Life, 1999.
Lua MLA (8ú heag.)McLaren, Donald Stewart. Towards the Conquest of Vitamin A Deficiency Disorders. Task Force Sight and Life, 1999.
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