, N. (1991). Britain in 2010: The PSI Report (3.). PSI Publishing.
Chicagoスタイル(17版)引用形式, Northcott. Britain in 2010: The PSI Report. 3. London: PSI Publishing, 1991.
MLA(9版)引用形式, Northcott. Britain in 2010: The PSI Report. 3. PSI Publishing, 1991.
警告: この引用は必ずしも正確ではありません.