Po, E. A. C. (2007). Soil aggregate stability: Cropping system effects, spatial variability and contribution to potato yield in Michigan. Michigan State University.
Citação do estilo Chicago (17ª ed.)Po, Edgar Allan C. Soil Aggregate Stability: Cropping System Effects, Spatial Variability and Contribution to Potato Yield in Michigan. Ann Arbor: Michigan State University, 2007.
Citação MLA (9ª ed.)Po, Edgar Allan C. Soil Aggregate Stability: Cropping System Effects, Spatial Variability and Contribution to Potato Yield in Michigan. Michigan State University, 2007.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.