Não informado. Soil management abstracts. International Board for Soil Research and Management.
Citação do estilo Chicago (17ª ed.)Não informado. Soil Management Abstracts. Bangkok: International Board for Soil Research and Management.
Citação MLA (8ª ed.)Não informado. Soil Management Abstracts. International Board for Soil Research and Management.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.