Category:Olavi J. Mattila by year
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Subcategories
This category has the following 4 subcategories, out of 4 total.
1
- Olavi J. Mattila in 1963 (1 F)
- Olavi J. Mattila in 1969 (1 F)
- Olavi J. Mattila in 1971 (4 F)
- Olavi J. Mattila in 1975 (3 F)