APA-referens

Norman W Hudson. (1993). FAO soils bulletin N.68: Field measurement of soil erosion and runoff. Rome: FAO.

Chicago-stil citat

Norman W Hudson. FAO Soils Bulletin N.68: Field Measurement of Soil Erosion and Runoff. Rome: FAO, 1993.

MLA-referens

Norman W Hudson. FAO Soils Bulletin N.68: Field Measurement of Soil Erosion and Runoff. Rome: FAO, 1993.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.