Pounds, N. J. G. (1964). North America ([2nd ed.].). J. Murray.
Chicagoスタイル(17版)引用形式Pounds, Norman John Greville. North America. [2nd ed.]. London: J. Murray, 1964.
MLA(9版)引用形式Pounds, Norman John Greville. North America. [2nd ed.]. J. Murray, 1964.
警告: この引用は必ずしも正確ではありません.