Kuhnlein, H. V. (1997). Culture, environment, and food to prevent Vitamin A deficiency. INFDC.
Lua i Stíl Chicago (17ú heag.)Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. Ottawa: INFDC, 1997.
Lua MLA (9ú heag.)Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. INFDC, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.