Classification
330 - Economics
333 - Economics of land & energy
2
340 - Law
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
600 - Technology
2
620 - Engineering & allied operations
2
900 - History & geography
320 - Political science
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1