APA (7th ed.) Citation

Rosén, R. Helsingfors stads historia.

Chicago Style (17th ed.) Citation

Rosén, Ragnar. Helsingfors Stads Historia. Helsingfors.

MLA (9th ed.) Citation

Rosén, Ragnar. Helsingfors Stads Historia.

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