Cita APA (7a ed.)

Trudgill, S. T. (1988). Soil and vegetation systems (2nd. ed.). Clarendon.

Cita Chicago Style (17a ed.)

Trudgill, Stephen T. Soil and Vegetation Systems. 2nd. ed. Oxford: Clarendon, 1988.

Cita MLA (8a ed.)

Trudgill, Stephen T. Soil and Vegetation Systems. 2nd. ed. Clarendon, 1988.