APA (7th ed.) Citation

Soil Survey of England and Wales & Thompson, T. R. E. (1982). Soils in Powys = Priddoedd ym Mhowys T.R.E. Thompson: Priddoedd ym Mhowys. Soil Survey of England and Wales.

Chicago Style (17th ed.) Citation

Soil Survey of England and Wales and T. R. E. Thompson. Soils in Powys = Priddoedd Ym Mhowys T.R.E. Thompson: Priddoedd Ym Mhowys. Harpenden: Soil Survey of England and Wales, 1982.

MLA (9th ed.) Citation

Soil Survey of England and Wales and T. R. E. Thompson. Soils in Powys = Priddoedd Ym Mhowys T.R.E. Thompson: Priddoedd Ym Mhowys. Soil Survey of England and Wales, 1982.

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