APA (7th ed.) Citation

Unto Häkkinen & Tor Iversen. (2013). Editorial. University of Oslo.

Chicago Style (17th ed.) Citation

Unto Häkkinen and Tor Iversen. Editorial. University of Oslo, 2013.

MLA (9th ed.) Citation

Unto Häkkinen and Tor Iversen. Editorial. University of Oslo, 2013.

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