Norton, P. (2003). Peter Norton's essential concepts (5th ed.). Glencoe / McGraw-Hill.
Chicagoスタイル(17版)引用形式Norton, Peter. Peter Norton's Essential Concepts. 5th ed. Columbus, Ohio: Glencoe / McGraw-Hill, 2003.
MLA(9版)引用形式Norton, Peter. Peter Norton's Essential Concepts. 5th ed. Glencoe / McGraw-Hill, 2003.
警告: この引用は必ずしも正確ではありません.