Classification
519 - Probabilities & applied mathematics
2
577 - Ecology
2
300 - Social sciences
1
541 - Physical chemistry
1
543 - Analytical chemistry
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
579 - Microorganisms, fungi & algae
1
620 - Engineering & allied operations
1
809 - History, description & criticism
1
910 - Geography & travel
1