Category:1957 treaties
Treaties that were either written and opened for signature in the year 1957, or entered into force in 1957.
Subcategories
This category has the following 2 subcategories, out of 2 total.
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- Treaties concluded in 1957 (14 P)
Treaties that were either written and opened for signature in the year 1957, or entered into force in 1957.
This category has the following 2 subcategories, out of 2 total.