Gaya APA

Shannon, M, W. et al (2007). Haddad and winchester's clinical management of poisoning and drug overdose (Ed. IV). Philadelphia: Saunders Elsevier.

Gaya MLA

Shannon, Michael, W.. et al. "Haddad and winchester's clinical management of poisoning and drug overdose". Ed. IV Philadelphia: Saunders Elsevier, 2007. Text.