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 citaatGiles, 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 citatieGiles, Joel T., et al. "Evaluation of Echinacea for Treatment of the Common Cold." Pharmacotherapy 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.