APA

Francis B. M., . (1994). Toxic Substances in the environment. New Jersey: John Wiley & Sons.

Chicago

Francis Bettina M, . 1994. Toxic Substances in the environment. New Jersey: John Wiley & Sons.

Harvard

Francis B. M., . (1994). Toxic Substances in the environment. New Jersey: John Wiley & Sons.

MLA

Francis Bettina M, . Toxic Substances in the environment. New Jersey: John Wiley & Sons. 1994.