APA (7th ed.) Citation
Sommer, R., Batchelor, W., White, J. W., Jones, J. W., Gijsman, A., & Porter, C. (2004). Modelling conservation agriculture. Druckhaus köthen GmbH.
Chicago Style (17th ed.) Citation
Sommer, Rolf, WD Batchelor, Jeffrey W. White, James W. Jones, A.J Gijsman, and C.H Porter. Modelling Conservation Agriculture. Druckhaus köthen GmbH, 2004.
MLA (9th ed.) Citation
Sommer, Rolf, et al. Modelling Conservation Agriculture. Druckhaus köthen GmbH, 2004.
Warning: These citations may not always be 100% accurate.