Clay, C., & Greenway, D. E. (1973). The Yorkshire Archaeological Society: Ed. by Charles Clay with ill. documents ed. by Diana E. Greenway. Yorkshire Archaeological Society.

Clay, Charles, and Diana E. Greenway. The Yorkshire Archaeological Society: Ed. by Charles Clay with Ill. Documents Ed. by Diana E. Greenway. [York]: Yorkshire Archaeological Society, 1973.

Clay, Charles, and Diana E. Greenway. The Yorkshire Archaeological Society: Ed. by Charles Clay with Ill. Documents Ed. by Diana E. Greenway. Yorkshire Archaeological Society, 1973.