APA (7th ed.) Citation

Hey, D. (1986). Yorkshire from AD 1000 / David Hey. Longman.

Chicago Style (17th ed.) Citation

Hey, David. Yorkshire from AD 1000 / David Hey. London: Longman, 1986.

MLA (9th ed.) Citation

Hey, David. Yorkshire from AD 1000 / David Hey. Longman, 1986.

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