APA (7th ed.) Citation

Geyer, E. H. (1849). De ulcero ventriculi perforante.

Chicago Style (17th ed.) Citation

Geyer, Ernst Heinrich. De Ulcero Ventriculi Perforante. Berolini, 1849.

MLA (9th ed.) Citation

Geyer, Ernst Heinrich. De Ulcero Ventriculi Perforante. 1849.

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