Cita APA (7a ed.)

(1979). Universal soil loss equation: Past, present, and future. Soil Science Society of América.

Cita Chicago Style (17a ed.)

Universal Soil Loss Equation: Past, Present, and Future. Madison, Wisconsin: Soil Science Society of América, 1979.

Cita MLA (8a ed.)

Universal Soil Loss Equation: Past, Present, and Future. Soil Science Society of América, 1979.