Não informado. (2016). Research Program on Soils of the Tropics, Annual Report. North Carolina State University, Soil Science Department.
Cita Chicago Style (17a ed.)Não informado. Research Program on Soils of the Tropics, Annual Report. Raleigh, NC: North Carolina State University, Soil Science Department, 2016.
Cita MLA (8a ed.)Não informado. Research Program on Soils of the Tropics, Annual Report. North Carolina State University, Soil Science Department, 2016.
Precaución: Estas citas no son 100% exactas.