Cita APA (7a ed.)
N, F., P, P., A, P., L, G., C, L., D, V., . . . Ponzetto, A. (2002). Helicobacter pylori infection and infertility. European Journal of Gastroenterology & Hepatology, 14(6), 663-670.
Cita Chicago Style (17a ed.)
N, Figura, et al. "Helicobacter Pylori Infection and Infertility." European Journal of Gastroenterology & Hepatology 14, no. 6 (2002): 663-670.
Cita MLA (9a ed.)
N, Figura, et al. "Helicobacter Pylori Infection and Infertility." European Journal of Gastroenterology & Hepatology, vol. 14, no. 6, 2002, pp. 663-670.
Precaución: Estas citas no son 100% exactas.