Sanders, J., Lampkin, N. H.,
Midmore, P. & Stolze, M.,
2005,
Researching Sustainable Systems: First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR). Köpke, U., Niggli, U., Neuhoff, D., Cornish, P., Lockeretz, W. & Willer, H. (gol.).
International Society of Organic Agriculture Research,
t. 342-345 4 t.Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Trafodion Cynhadledd (Nid-Cyfnodolyn fathau)