APA (7th ed.) Citation

Powell, J. H., Cooper, A. H., & Benfield, A. C. (1992). Geology of the country around Thirsk (1. publ.). HMSO.

Chicago Style (17th ed.) Citation

Powell, J. H., A. H. Cooper, and A. C. Benfield. Geology of the Country Around Thirsk. 1. publ. London: HMSO, 1992.

MLA (9th ed.) Citation

Powell, J. H., et al. Geology of the Country Around Thirsk. 1. publ. HMSO, 1992.