Cita APA (7th ed.)

MORGAN, R. (1995). Soil erosion and conservation.-- Ed.2. Longman.

Cita Chicago (17th ed.)

MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. England: Longman, 1995.

Cita MLA (9th ed.)

MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. Longman, 1995.