International Symposium on the Use of Composts as Horticultural Substrates Ghent/Melle, Belgium, International Society for Horticultural Science. Commission for Plant Substrates, & Verdonck, O. (1985). International Symposium on the Use of Composts on Horticultural Substrates: Ghent/Melle, Belgium, 27-31 August 1984. [International Society for Horticultural Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Symposium on the Use of Composts as Horticultural Substrates Ghent/Melle, Belgium, International Society for Horticultural Science. Commission for Plant Substrates, و O. Verdonck. International Symposium on the Use of Composts on Horticultural Substrates: Ghent/Melle, Belgium, 27-31 August 1984. Wageningen, Netherlands: [International Society for Horticultural Science, 1985.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Symposium on the Use of Composts as Horticultural Substrates Ghent/Melle, Belgium, et al. International Symposium on the Use of Composts on Horticultural Substrates: Ghent/Melle, Belgium, 27-31 August 1984. [International Society for Horticultural Science, 1985.