United States Department of Agriculture, & Natural Resources Conservation Service. (1995). Soil survey laboratory information manual. Lincoln: National Soil Survey Center.
Styl cytowania ChicagoUnited States Department of Agriculture, i Natural Resources Conservation Service. Soil Survey Laboratory Information Manual. Lincoln: National Soil Survey Center, 1995.
Styl cytowania MLAUnited States Department of Agriculture, i Natural Resources Conservation Service. Soil Survey Laboratory Information Manual. Lincoln: National Soil Survey Center, 1995.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..