Classification
304 - Factors affecting social behavior
600 - Technology
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
370 - Education
1
380 - Commerce, communications & transportation
1
580 - Plants (Botany)
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
920 - Biography, genealogy & insignia
1