Cita APA (7a ed.)
Yeung, C. K., Fu, K. H., Yuen, K. Y., Ng, W. F., Tsang, T. M., Branicki, F. J., & Saing, H. (1990). Helicobacter pylori and associated duodenal ulcer. Archives of Disease in Childhood, 65(11), 1212-1217.
Cita Chicago Style (17a ed.)
Yeung, C. K., K. H. Fu, K. Y. Yuen, W. F. Ng, T. M. Tsang, F. J. Branicki, y H. Saing. "Helicobacter Pylori and Associated Duodenal Ulcer." Archives of Disease in Childhood 65, no. 11 (1990): 1212-1217.
Cita MLA (9a ed.)
Yeung, C. K., et al. "Helicobacter Pylori and Associated Duodenal Ulcer." Archives of Disease in Childhood, vol. 65, no. 11, 1990, pp. 1212-1217.
Precaución: Estas citas no son 100% exactas.