APA (7th ed.) Citation

Bjørkelo, B., Gundhus, H., & Thomassen, G. Welcome! Scandinavian University Press.

Chicago Style (17th ed.) Citation

Bjørkelo, Brita, Helene Gundhus, and Gunnar Thomassen. Welcome! Scandinavian University Press.

MLA (9th ed.) Citation

Bjørkelo, Brita, et al. Welcome! Scandinavian University Press.