Dyfyniad APA

Kuhnlein, H. V. (1997). Culture, environment, and food to prevent Vitamin A deficiency. INFDC.

Dyfyniad Arddull Chicago

Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. Ottawa: INFDC, 1997.

Dyfyniad MLA

Kuhnlein, Harriet V. Culture, Environment, and Food to Prevent Vitamin A Deficiency. INFDC, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.