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1
320.9/
320.9/
Intangible
http://dewey.info/class/320.9/
10536503
10747065
11342891
11476092
11697748
13389682
150975748
15464621
17550247
18038197
18907777
21941384
2224185
224086675
23970508
2528519
2862432
28714442
29135137
29952447
3422761
3556924
36429651
4051673
411144
419198
494803
5710994
60916765
6635866
7217289
748990718
784886
8786315
943276708
about
320.9/
Intangible
http://dewey.info/class/320.9/
type
Intangible