APA (7th ed.) Citation

Thom, A., Thom, A. S., & Burl, A. (1980). Megalithic rings: Plans and data for 229 monuments in Britain. British Archaeological Reports.

Chicago Style (17th ed.) Citation

Thom, A., A. S. Thom, and Aubrey Burl. Megalithic Rings: Plans and Data for 229 Monuments in Britain. Oxford, England: British Archaeological Reports, 1980.

MLA (9th ed.) Citation

Thom, A., et al. Megalithic Rings: Plans and Data for 229 Monuments in Britain. British Archaeological Reports, 1980.