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This category has the following 2 subcategories, out of 2 total.
245:
Pages in category "Scientific organizations established in 1981"
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The following 6 pages are in this category, out of 6 total.
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347:Scientific organizations established in the 1980s
342:Scientific organizations by year of establishment
323:Southern Africa Mathematical Sciences Association
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205:Environmental organizations established in 1981
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336:Categories
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178:2030s
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168:2010s
163:2000s
158:1990s
152:1980s
146:1970s
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126:1930s
115:1986
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53:1981
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318:S
306:O
294:I
282:C
270:B
258:A
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