APA

Helferich W., Winter C. K., . (2001). Food toxicology. London: CRC Press.

Chicago

Helferich William, Winter Carl K, . 2001. Food toxicology. London: CRC Press.

Harvard

Helferich W., Winter C. K., . (2001). Food toxicology. London: CRC Press.

MLA

Helferich William, Winter Carl K, . Food toxicology. London: CRC Press. 2001.