APA (7e ed.) Bronvermelding

SOIL. Soil taxonomy: A basic system of soil classificationfor making and interpreting soil surveys. Departement of Agriculture.

Chicago (17e ed.) Bronvermelding

SOIL. Soil Taxonomy: A Basic System of Soil Classificationfor Making and Interpreting Soil Surveys. U.S: Departement of Agriculture.

MLA (9e ed.) Bronvermelding

SOIL. Soil Taxonomy: A Basic System of Soil Classificationfor Making and Interpreting Soil Surveys. Departement of Agriculture.

Let op: Deze citaties zijn niet altijd 100% accuraat.