Classification
UEN - Environmental economy
UEA - Environmental policy and economy - general aspects
2
UED - Environmental policy
2
UEF - Sustainability
2
UMN - Air pollution control and measurement
2
YPG - Business management
2
YPGB - Process management
2
YPW - Economy of industry branches
2
GWA - Raw material economy, raw material policy
1
UAA - Environment - reference books
1
USU - Waste recycling
1
YPB - Economy - general aspects
1
YRC - Technology and society
1