Collins, B. J. (1996). Helicobacter pylori: Is it all in the family?
Citação norma ChicagoCollins, B J. Helicobacter Pylori: Is It All in the Family? 1996.
MLA引文Collins, B J. Helicobacter Pylori: Is It All in the Family? 1996.
警告：這些引文格式不一定是100％准確.
APA引文