APA (7th ed.) Citation

Hellmut Schumann (Zurych). (2007). Fine and rare books. Hellmut Schuman AG.

Chicago Style (17th ed.) Citation

Hellmut Schumann (Zurych). Fine and Rare Books. Zürich: Hellmut Schuman AG, 2007.

MLA (9th ed.) Citation

Hellmut Schumann (Zurych). Fine and Rare Books. Hellmut Schuman AG, 2007.

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