APA (7th ed.) Citation

S. Karger (Firm). Digestive surgery. Karger.

Chicago Style (17th ed.) Citation

S. Karger (Firm). Digestive Surgery. [Basel, Switzerland]: Karger.

MLA (9th ed.) Citation

S. Karger (Firm). Digestive Surgery. Karger.

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