APA
Clayton, . (1997). Helicobacter Pylori Protocols. : Humana Press.
Chicago
Clayton, . 1997. Helicobacter Pylori Protocols. : Humana Press.
Harvard
Clayton, . (1997). Helicobacter Pylori Protocols. : Humana Press.
MLA
Clayton, . Helicobacter Pylori Protocols. : Humana Press. 1997.