Perpustakaan UGM, i. (1999). The long term effects of sludge fertilization and access trail on stand diameter growth of oak and their relations to soil conservation strategy. [Yogyakarta] : Universitas Gadjah Mada.
استشهاد بنمط شيكاغوPerpustakaan UGM, i-lib. The Long Term Effects of Sludge Fertilization and Access Trail On Stand Diameter Growth of Oak and Their Relations to Soil Conservation Strategy. [Yogyakarta] : Universitas Gadjah Mada, 1999.
MLA استشهادPerpustakaan UGM, i-lib. The Long Term Effects of Sludge Fertilization and Access Trail On Stand Diameter Growth of Oak and Their Relations to Soil Conservation Strategy. [Yogyakarta] : Universitas Gadjah Mada, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.