Classification
UAA - Environment - reference books
73
UAD - Environment - comprehensive works
14
UCS - Environmental chemistry
8
UCE - Environmental impact, environmental pollution
5
EAA - Energy - reference books
4
TAA - Engineering sciences - reference books
4
AZZ - Firm index - general
2
HPT - Toxicology
2
LAA - Biology - reference books
2
UED - Environmental policy
2
AES - Universities, academies - Germany
1
CAV - Chemicals, chemical reagents
1
CUR - Infrared spectroscopy
1
LCA - Ecology - reference books
1
LWO - Agricultural ecology, sustainable agriculture
1
UAN - Environment - mathematical methods, computer applications
1
UAX - Environment - information systems, literature guides
1
UCA - Environmental problems, man and environment - general aspects
1
UCJ - Environmental protection - general aspects
1
UCL - Environmental research
1
UCQ - Environmental technology
1
UEA - Environmental policy and economy - general aspects
1
UEN - Environmental economy
1
UMN - Air pollution control and measurement
1
UMV - Climatic change
1
USN - Waste water treatment
1
UUD - Ecotoxicology
1
UVA - Environmental chemicals, hazardous materials - comprehensive works
1
UVF - Environmental aspects of heavy metals and their compounds
1
UXV - Radioactive waste disposal - interim and final
1
YPB - Economy - general aspects
1