Shaman, J., & Lipsitch, M. (2013). The El Niño–Southern Oscillation (ENSO)–pandemic Influenza connection: Coincident or causal? National Academy of Sciences.
استشهاد بنمط شيكاغوShaman, Jeffrey, و Marc Lipsitch. The El Niño–Southern Oscillation (ENSO)–pandemic Influenza Connection: Coincident or Causal? National Academy of Sciences, 2013.
MLA استشهادShaman, Jeffrey, و Marc Lipsitch. The El Niño–Southern Oscillation (ENSO)–pandemic Influenza Connection: Coincident or Causal? National Academy of Sciences, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.