International plant, G. r. I. (1977). Soil organic matter studies.Vol21. International Atomic Energy Agency.
Chicago Edition CitationInternational plant, Genetic resources Institute. Soil Organic Matter Studies.Vol21. Vienna: International Atomic Energy Agency, 1977.
MLA Edition CitationInternational plant, Genetic resources Institute. Soil Organic Matter Studies.Vol21. International Atomic Energy Agency, 1977.
Warning: These citations may not always be 100% accurate.