Gift, T. L., Palekar, R. S., Sodha, S. V., Kent, C. K., Fagan, R. P., Archer, W. R., . . . Meltzer, M. I. (2010). Household Effects of School Closure during Pandemic (H1N1) 2009, Pennsylvania, USA. Centers for Disease Control and Prevention.
Παραπομπή Chicago StyleGift, Thomas L., et al. Household Effects of School Closure During Pandemic (H1N1) 2009, Pennsylvania, USA. Centers for Disease Control and Prevention, 2010.
Παραπομπή MLAGift, Thomas L., et al. Household Effects of School Closure During Pandemic (H1N1) 2009, Pennsylvania, USA. Centers for Disease Control and Prevention, 2010.
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