APA način citiranja (7. izdanje)

Scherr, S. J. (1999). Soil degradation: A threat to developing-country food security by 2020? International Food Policy Research Institute.

Čikaški stil citiranja (17. izdanje)

Scherr, Sara J. Soil Degradation: A Threat to Developing-country Food Security by 2020? Washington, D.C: International Food Policy Research Institute, 1999.

MLA način citiranja (9. izdanje)

Scherr, Sara J. Soil Degradation: A Threat to Developing-country Food Security by 2020? International Food Policy Research Institute, 1999.