3 treff

Status of cadmium, lead, cobalt and selenium in soils and plants of thirty countries
by Mikko Sillanpää and Håkan Jansson ; sp...
Bok Engelsk 1992
Micronutrient assessment at the country level : an international study
by Mikko Sillanpää
Bok Engelsk 1990
Micronutrients and the nutrient status of soils : a global study
by Mikko Sillanpää ; sponsored by the Gov...
Bok Engelsk 1982