Arnold, G. (1993). Soil acidification and embalanced nutrient availability in scots pine forest soils in the Netherlands. Agricultural University.
استشهاد بنمط شيكاغوArnold, Gert. Soil Acidification and Embalanced Nutrient Availability in Scots Pine Forest Soils in the Netherlands. Wageningen: Agricultural University, 1993.
MLA استشهادArnold, Gert. Soil Acidification and Embalanced Nutrient Availability in Scots Pine Forest Soils in the Netherlands. Agricultural University, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.