APA način citiranja

Shoemaker, H. (1920). Perforated Gastric and Duodenal Ulcers.

Čikaški stil citiranja

Shoemaker, Harlan. Perforated Gastric and Duodenal Ulcers. 1920.

MLA način citiranja

Shoemaker, Harlan. Perforated Gastric and Duodenal Ulcers. 1920.

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