Months of the year

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Across
  1. 4. February
  2. 6. November
  3. 7. August
  4. 11. March
  5. 13. September
Down
  1. 1. January
  2. 2. May
  3. 3. April
  4. 5. June
  5. 8. December
  6. 9. July
  7. 10. March
  8. 12. October