Não informado. Soil series. British Columbia Department of Agriculture, Field Crops Branch.
Chicago-referens (17:e uppl.)Não informado. Soil Series. Victoria, Austrália: British Columbia Department of Agriculture, Field Crops Branch.
MLA-referens (8:e uppl.)Não informado. Soil Series. British Columbia Department of Agriculture, Field Crops Branch.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.