APA (7th ed.) Citation

Herbers, M. R. (1985). Vitamin A: An urgent nutritional need for the world's children. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Herbers, Mary Ruth. Vitamin A: An Urgent Nutritional Need for the World's Children. Washington: U.S. G.P.O., 1985.

MLA (9th ed.) Citation

Herbers, Mary Ruth. Vitamin A: An Urgent Nutritional Need for the World's Children. U.S. G.P.O., 1985.