Não informado. Soil management abstracts. International Board for Soil Research and Management.
Čikaški stil citiranja (17. izdanje)Não informado. Soil Management Abstracts. Bangkok: International Board for Soil Research and Management.
MLA način citiranja (8. izdanje)Não informado. Soil Management Abstracts. International Board for Soil Research and Management.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.