Cita APA

Yang, X., Nishibayashi, H., Takeshita, T., & Morimoto, K. (1999). Prevalence ofHelicobacter pylori infection in Japan: Relation to educational levels and hygienic conditions. Springer-Verlag.

Chicago Style Citation

Yang, Xing, Hiroyuki Nishibayashi, Tatsuya Takeshita, i Kanehisa Morimoto. Prevalence OfHelicobacter Pylori Infection in Japan: Relation to Educational Levels and Hygienic Conditions. Springer-Verlag, 1999.

Cita MLA

Yang, Xing, Hiroyuki Nishibayashi, Tatsuya Takeshita, i Kanehisa Morimoto. Prevalence OfHelicobacter Pylori Infection in Japan: Relation to Educational Levels and Hygienic Conditions. Springer-Verlag, 1999.