Gaya APA

Von, U. (1986). Efficient Fertilizer Use In Acid Upland Soils Of The Humid Tropics . Roma: Food And Agriculture Organization Of The United Nations.

Gaya MLA

Von, Uexkull. "Efficient Fertilizer Use In Acid Upland Soils Of The Humid Tropics". Roma: Food And Agriculture Organization Of The United Nations, 1986. Text.