Nicholson, K. G., Kent, J., & Hammersley, V. (1999). Influenza A among community-dwelling elderly persons in Leicestershire during winter 1993-4; cigarette smoking as a risk factor and the efficacy of influenza vaccination. Cambridge University Press.
Chicago-стиль цитированияNicholson, K. G., J. Kent, and V. Hammersley. Influenza A Among Community-dwelling Elderly Persons in Leicestershire During Winter 1993-4; Cigarette Smoking As a Risk Factor and the Efficacy of Influenza Vaccination. Cambridge University Press, 1999.
MLA-цитированиеNicholson, K. G., J. Kent, and V. Hammersley. Influenza A Among Community-dwelling Elderly Persons in Leicestershire During Winter 1993-4; Cigarette Smoking As a Risk Factor and the Efficacy of Influenza Vaccination. Cambridge University Press, 1999.