Signer, J., Jonsdottir, H. R., Albrich, W. C., Strasser, M., Züst, R., Ryter, S., . . . Engler, O. B. (2020). In vitro virucidal activity of Echinaforce®, an Echinacea purpurea preparation, against coronaviruses, including common cold coronavirus 229E and SARS-CoV-2. Virol J.
استشهاد بنمط شيكاغوSigner, Johanna, et al. "In Vitro Virucidal Activity of Echinaforce®, an Echinacea Purpurea Preparation, against Coronaviruses, Including Common Cold Coronavirus 229E and SARS-CoV-2." Virol J 2020.
MLA استشهادSigner, Johanna, et al. "In Vitro Virucidal Activity of Echinaforce®, an Echinacea Purpurea Preparation, against Coronaviruses, Including Common Cold Coronavirus 229E and SARS-CoV-2." Virol J 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.