Chen, M. I., Lee, V. J., Barr, I., Lin, C., Goh, R., Lee, C., . . . Leo, Y. S. (2010). Risk Factors for Pandemic (H1N1) 2009 Virus Seroconversion among Hospital Staff, Singapore. Centers for Disease Control and Prevention.
استشهاد بنمط شيكاغوChen, Mark I.C., et al. Risk Factors for Pandemic (H1N1) 2009 Virus Seroconversion Among Hospital Staff, Singapore. Centers for Disease Control and Prevention, 2010.
MLA استشهادChen, Mark I.C., et al. Risk Factors for Pandemic (H1N1) 2009 Virus Seroconversion Among Hospital Staff, Singapore. Centers for Disease Control and Prevention, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.