APA (7e ed.) Bronvermelding

Não informado. (2016). Agronomic-Economic Research on Soils of the Tropics. North Carolina State University, Soil Science Department.

Chicago (17e ed.) Bronvermelding

Não informado. Agronomic-Economic Research on Soils of the Tropics. Raleigh, NC: North Carolina State University, Soil Science Department, 2016.

MLA (8e ed.) Bronvermelding

Não informado. Agronomic-Economic Research on Soils of the Tropics. North Carolina State University, Soil Science Department, 2016.

Let op: Deze citaties zijn niet altijd 100% accuraat.