APA

Beal V. A., . (1980). Nutrition in the life span. New York: Wiley.

Chicago

Beal Virginia A, . 1980. Nutrition in the life span. New York: Wiley.

Harvard

Beal V. A., . (1980). Nutrition in the life span. New York: Wiley.

MLA

Beal Virginia A, . Nutrition in the life span. New York: Wiley. 1980.