APA (7th ed.) Citation

Hey, R. (1920). Über Pneumatosis cystoides Intestini hominis.

Chicago Style (17th ed.) Citation

Hey, Rolf. Über Pneumatosis Cystoides Intestini Hominis. 1920.

MLA (8th ed.) Citation

Hey, Rolf. Über Pneumatosis Cystoides Intestini Hominis. 1920.

Warning: These citations may not always be 100% accurate.