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Class frequency
Class hierarchy
331.0973/
331.0973/
Intangible
http://dewey.info/class/331.0973/
1037997
1140782
1175661
1511963
1662809
1693960
178018
185066752
2044991
20741096
2109400
2298566
231749
232373
2331856
2642808
271424864
279560
286153
29679907
298849
310484
3294308
416668
4672444
476802
476857
476883
5171112
5275276
6279612
6585246
75617
8226616
844365
8857671
897946
about
331.0973/
Intangible
http://dewey.info/class/331.0973/
type
Intangible