Tohutoro APA (7th ed.)

, N. (1991). Britain in 2010: The PSI Report (3.). PSI Publishing.

Tohutoru Kātū Chicago (17th ed.)

, Northcott. Britain in 2010: The PSI Report. 3. London: PSI Publishing, 1991.

Tohutoro MLA (9th ed.)

, Northcott. Britain in 2010: The PSI Report. 3. PSI Publishing, 1991.

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