Citazione APA

SpringerLink (Online service), Kingston, R. L., & Tracy, T. S. (2007). Herbal products: Toxicology and clinical pharmacology (Second Edition.). Humana Press.

Stile di citazione Chicago

SpringerLink (Online service), Richard L. Kingston, e Timothy S. Tracy. Herbal Products: Toxicology and Clinical Pharmacology. Second Edition. Totowa, NJ: Humana Press, 2007.

Citazione MLA

SpringerLink (Online service), et al. Herbal Products: Toxicology and Clinical Pharmacology. Second Edition. Humana Press, 2007.