Merrington, G., Winder, L., & Parkinson, R. (2002). Agricultural soil handling. Spon Press.
Cita Chicago (17th ed.)Merrington, Graham, Linton Winder, i Robert Parkinson. Agricultural Soil Handling. London: Spon Press, 2002.
Cita MLA (9th ed.)Merrington, Graham, et al. Agricultural Soil Handling. Spon Press, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.