APA (7th ed.) Citation

Olsen, O. M. Gauss in Gütersloh. Literarisches Büro.

Chicago Style (17th ed.) Citation

Olsen, Olger M. Gauss in Gütersloh. Osnabrück: Literarisches Büro.

MLA (9th ed.) Citation

Olsen, Olger M. Gauss in Gütersloh. Literarisches Büro.

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