MLA

Backert, Steffen; Yamaoka, Yoshio, and Yoshio Yamaoka. Helicobacter Pylori Research. Springer Japan, 2016.

APA

Backert, Y., & Yamaoka, Y. (2016). Helicobacter pylori Research. Springer Japan.

Chicago

Backert, Steffen; Yamaoka, Yoshio, and Yoshio Yamaoka. Helicobacter Pylori Research. : Springer Japan, 2016.