Cita APA (7th ed.)

BRIDGES, E. (1979). World soils.-- Ed.2. Cambridge University Press.

Cita Chicago (17th ed.)

BRIDGES, E.M. World Soils.-- Ed.2. Cambridge: Cambridge University Press, 1979.

Cita MLA (9th ed.)

BRIDGES, E.M. World Soils.-- Ed.2. Cambridge University Press, 1979.