Cadena Zapata, M. (1999). Soil workability as a basis for advice on tillage activities.
Chicago-Zitierstil (17. Ausg.)Cadena Zapata, Martin. Soil Workability as a Basis for Advice on Tillage Activities. Wageningen, 1999.
MLA-Zitierstil (9. Ausg.)Cadena Zapata, Martin. Soil Workability as a Basis for Advice on Tillage Activities. 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.