APA (7th ed.) Citation

Smyth, A. P. (1977). Scandinavian kings in the British Isles: 850-880. Oxford Univ. Pr.

Chicago Style (17th ed.) Citation

Smyth, Alfred P. Scandinavian Kings in the British Isles: 850-880. Oxford: Oxford Univ. Pr, 1977.

MLA (9th ed.) Citation

Smyth, Alfred P. Scandinavian Kings in the British Isles: 850-880. Oxford Univ. Pr, 1977.

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