Não informado. Survey of the literature of dental caries. University of Pittsburgh, School of Dentistry, Research Department.
Citação do estilo Chicago (17ª ed.)Não informado. Survey of the Literature of Dental Caries. Pittsburgh, Pa: University of Pittsburgh, School of Dentistry, Research Department.
Citação MLA (8ª ed.)Não informado. Survey of the Literature of Dental Caries. University of Pittsburgh, School of Dentistry, Research Department.
警告：这些引文格式不一定是100％准确.