Παραπομπή APA

(1964). Census of population 1961: County of Tyrone. Belfast: Her Majesty's Stationery Office.

Παραπομπή Chicago Style

Census of Population 1961: County of Tyrone. Belfast: Her Majesty's Stationery Office, 1964.

Παραπομπή MLA

Census of Population 1961: County of Tyrone. Belfast: Her Majesty's Stationery Office, 1964.

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