Kuhnlein, H. V. (1997). Culture, environment, and food to prevent Vitamin A deficiency. INFDC.
Chicago-čujuhus (17. p.)Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. Ottawa: INFDC, 1997.
MLA-čujuhus (9. p.)Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. INFDC, 1997.
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