Holmén, A., Strömberg, U., Magnusson, K., & Twetman, S. (2013). Tobacco use and caries risk among adolescents – a longitudinal study in Sweden. BioMed Central.
Citação norma ChicagoHolmén, Anders, Ulf Strömberg, Kerstin Magnusson, and Svante Twetman. Tobacco Use and Caries Risk Among Adolescents – a Longitudinal Study in Sweden. BioMed Central, 2013.
MLA引文Holmén, Anders, Ulf Strömberg, Kerstin Magnusson, and Svante Twetman. Tobacco Use and Caries Risk Among Adolescents – a Longitudinal Study in Sweden. BioMed Central, 2013.
警告：這些引文格式不一定是100％准確.