APA (7th ed.) Citation

Ker, W. P. (1955). The dark ages / by W.P. Ker. Nelson.

Chicago Style (17th ed.) Citation

Ker, W. P. The Dark Ages / by W.P. Ker. Nelson, 1955.

MLA (9th ed.) Citation

Ker, W. P. The Dark Ages / by W.P. Ker. Nelson, 1955.

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