APA (7th ed.) Citation

Donovan, F. R. (1965). The Vikings / by F.R. Donovan. Cassel.

Chicago Style (17th ed.) Citation

Donovan, F. R. The Vikings / by F.R. Donovan. Cassel, 1965.

MLA (9th ed.) Citation

Donovan, F. R. The Vikings / by F.R. Donovan. Cassel, 1965.

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