Não informado. Soil series. British Columbia Department of Agriculture, Field Crops Branch.
Chicago-viite (17. p.)Não informado. Soil Series. Victoria, Austrália: British Columbia Department of Agriculture, Field Crops Branch.
MLA-viite (8. p.)Não informado. Soil Series. British Columbia Department of Agriculture, Field Crops Branch.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.