Classification
UVC - Environmental chemicals, hazardous materials - general aspects
8
UCS - Environmental chemistry
2
LCMC - Plants - ecology
1
LCO - Hydrobiology
1
LKHE - Biochemistry - analytical methods
1
LWA - Agriculture - reference books
1
LWV - Agriculture - plant protection
1
UCGE - Control of environmental pollution - analytical methods
1
UMLN - Air pollution by other sources
1
UPT - Water pollution control and measurement
1
UPTF - Organic pollutants in water
1
UPTK - Volatile pollutants in water
1
URA - Soil chemistry
1
UUD - Ecotoxicology
1
UVT - Environmental aspects of other hazardous materials
1