APA Citatie

Giles, J. T., Palat, C. T., Chien, S. H., Chang, Z. G., & Kennedy, D. T. (2000). Evaluation of Echinacea for Treatment of the Common Cold. Pharmacotherapy.

Chicago Style citaat

Giles, Joel T., Cuthbert T. Palat, Susan H. Chien, Ziba Gorji Chang, en Daniel T. Kennedy. "Evaluation of Echinacea for Treatment of the Common Cold." Pharmacotherapy 2000.

MLA citatie

Giles, Joel T., et al. "Evaluation of Echinacea for Treatment of the Common Cold." Pharmacotherapy 2000.