Cita APA (7th ed.)

Po, E. A. C. (2007). Soil aggregate stability: Cropping system effects, spatial variability and contribution to potato yield in Michigan. Michigan State University.

Cita Chicago (17th 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.

Cita MLA (9th ed.)

Po, Edgar Allan C. Soil Aggregate Stability: Cropping System Effects, Spatial Variability and Contribution to Potato Yield in Michigan. Michigan State University, 2007.