Cita APA (7a ed.)

Gregorich, E. G., & Carter, M. R. (1997). Soil quality for crop production and ecosystem health. Elsevier.

Cita Chicago Style (17a ed.)

Gregorich, E. G., y M. R. Carter. Soil Quality for Crop Production and Ecosystem Health. Amsterdam: Elsevier, 1997.

Cita MLA (8a ed.)

Gregorich, E. G., y M. R. Carter. Soil Quality for Crop Production and Ecosystem Health. Elsevier, 1997.