Hakan Jansson. (1995). World soil resources reports N79: Status of sulphur in soils and plants of thirty countries. Rome: FAO.
शिकागो स्टाइल उद्धरणHakan Jansson. World Soil Resources Reports N79: Status of Sulphur in Soils and Plants of Thirty Countries. Rome: FAO, 1995.
एमएलए उद्धरणHakan Jansson. World Soil Resources Reports N79: Status of Sulphur in Soils and Plants of Thirty Countries. Rome: FAO, 1995.
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