Citazione APA

Graham, D. Y. (2014). History of Helicobacter pylori, duodenal ulcer, gastric ulcer and gastric cancer. Baishideng Publishing Group Co., Limited.

Stile di citazione Chicago

Graham, David Y. History of Helicobacter Pylori, Duodenal Ulcer, Gastric Ulcer and Gastric Cancer. Baishideng Publishing Group Co., Limited, 2014.

Citazione MLA

Graham, David Y. History of Helicobacter Pylori, Duodenal Ulcer, Gastric Ulcer and Gastric Cancer. Baishideng Publishing Group Co., Limited, 2014.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.