APA (7th ed.) Citation

Posner, C. (1921). Rudolf Virchow (2. Aufl.). Rikola.

Chicago Style (17th ed.) Citation

Posner, Carl. Rudolf Virchow. 2. Aufl. Wien [u.a.]: Rikola, 1921.

MLA (9th ed.) Citation

Posner, Carl. Rudolf Virchow. 2. Aufl. Rikola, 1921.

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