Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.