Classification
580 - Plants (Botany)
657 - Accounting
000 - Computer science, information & general works
2
330 - Economics
2
363 - Other social problems & services
2
140 - Specific philosophical schools
1
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1