APA (7th ed.) Citation

Roesdahl, E. (1991). The Vikings (1. publ.). Allen Lane.

Chicago Style (17th ed.) Citation

Roesdahl, Else. The Vikings. 1. publ. London: Allen Lane, 1991.

MLA (9th ed.) Citation

Roesdahl, Else. The Vikings. 1. publ. Allen Lane, 1991.

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