APA (7th ed.) Citation

Christiansen, R. T., & Christiansen, R. T. Folktales of Norway.

Chicago Style (17th ed.) Citation

Christiansen, Raidar Thoralf, and Reider Thorwald Christiansen. Folktales of Norway. 284 p.

MLA (9th ed.) Citation

Christiansen, Raidar Thoralf, and Reider Thorwald Christiansen. Folktales of Norway.

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