APA-referens

United States Department of Agriculture, & Natural Resources Conservation Service. (1995). Soil survey laboratory information manual. Lincoln: National Soil Survey Center.

Chicago-stil citat

United States Department of Agriculture, och Natural Resources Conservation Service. Soil Survey Laboratory Information Manual. Lincoln: National Soil Survey Center, 1995.

MLA-referens

United States Department of Agriculture, och Natural Resources Conservation Service. Soil Survey Laboratory Information Manual. Lincoln: National Soil Survey Center, 1995.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.