APA (7th ed.) Citation
Toolis, R., & Bowles, C. (2017). The lost Dark Age kingdom of Rheged: The discovery of a royal stronghold at Trusty's Hill, Galloway. Oxbow Books.
Chicago Style (17th ed.) Citation
Toolis, Ronan, and Christopher Bowles. The Lost Dark Age Kingdom of Rheged: The Discovery of a Royal Stronghold at Trusty's Hill, Galloway. Oxford, [England] ; Philadelphia, Pennsylvania: Oxbow Books, 2017.
MLA (9th ed.) Citation
Toolis, Ronan, and Christopher Bowles. The Lost Dark Age Kingdom of Rheged: The Discovery of a Royal Stronghold at Trusty's Hill, Galloway. Oxbow Books, 2017.
Warning: These citations may not always be 100% accurate.