Cita APA (7a ed.)

Schnitzer, M., & Khan, S. (1978). Soil organic matter (1st edition.). Elsevier.

Cita Chicago Style (17a ed.)

Schnitzer, M., y S.U Khan. Soil Organic Matter. 1st edition. Amsterdam: Elsevier, 1978.

Cita MLA (8a ed.)

Schnitzer, M., y S.U Khan. Soil Organic Matter. 1st edition. Elsevier, 1978.