APA-referens (7:e uppl.)

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.