APA

Timbrell J. A., . (1997). Study toxicology through questions. New York: Informa healthcare.

Chicago

Timbrell John A, . 1997. Study toxicology through questions. New York: Informa healthcare.

Harvard

Timbrell J. A., . (1997). Study toxicology through questions. New York: Informa healthcare.

MLA

Timbrell John A, . Study toxicology through questions. New York: Informa healthcare. 1997.