Xu, X., Blanton, L., Elal, A. I. A., Alabi, N., Barnes, J., Biggerstaff, M., . . . Jernigan, D. (2019). Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine. MMWR Morb Mortal Wkly Rep.
Citación estilo ChicagoXu, Xiyan, et al. "Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine." MMWR Morb Mortal Wkly Rep 2019.
Cita MLAXu, Xiyan, et al. "Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine." MMWR Morb Mortal Wkly Rep 2019.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.