-
Sears' list of subject headings (2007)
0.02
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0.07334548 = product of:
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0.14669096 = weight(_text_:dc22 in 4617) [ClassicSimilarity], result of:
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- Classification
- 025.4/9 / dc22
- DDC
- 025.4/9 / dc22
-
Sears' list of subject headings (2010)
0.02
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0.07334548 = product of:
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- Classification
- 025.4/9 / dc22
- DDC
- 025.4/9 / dc22