Cita APA (7a ed.)

Butler, B. E. (1980). Soil classification for soil survey. Clarendon Press.

Cita Chicago Style (17a ed.)

Butler, B. E. Soil Classification for Soil Survey. Oxford: Clarendon Press, 1980.

Cita MLA (9a ed.)

Butler, B. E. Soil Classification for Soil Survey. Clarendon Press, 1980.