Roy...[et.al], R. Plant nutrition for food security a guide for intergrated nutrient management. Food and agriculture organization of the United Nations.
Chicago-referens (17:e uppl.)Roy...[et.al], R.N. Plant Nutrition for Food Security a Guide for Intergrated Nutrient Management. Food and agriculture organization of the United Nations.
MLA-referens (8:e uppl.)Roy...[et.al], R.N. Plant Nutrition for Food Security a Guide for Intergrated Nutrient Management. Food and agriculture organization of the United Nations.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.