APA-ийн эшлэл(7 дахь хэвлэлт)
Organisation for Economic Co-operation and Development. (1999). The Environmental goods and services industry: Manual for data collection and analysis. Organisation for Economic Co-operation and Development.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Organisation for Economic Co-operation and Development. The Environmental Goods and Services Industry: Manual for Data Collection and Analysis. Paris, France: Organisation for Economic Co-operation and Development, 1999.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Organisation for Economic Co-operation and Development. The Environmental Goods and Services Industry: Manual for Data Collection and Analysis. Organisation for Economic Co-operation and Development, 1999.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.