Vitamin A : an urgent nutritional need for the world's children

MLA

Herbers, Mary Ruth. and United States. Vitamin A : an urgent nutritional need for the world's children. Washington : U.S. Government Printing Office, 1985.

APA

Herbers, M. & United States. (1985). Vitamin A : an urgent nutritional need for the world's children. Washington : U.S. Government Printing Office.

Chicago

Herbers, Mary Ruth. and United States. Vitamin A : an urgent nutritional need for the world's children. Washington : U.S. Government Printing Office, 1985.