(2004). The World of Learning (55th ed.). Europa.
Chicagoスタイル(17版)引用形式The World of Learning. 55th ed. London: Europa, 2004.
MLA(9版)引用形式The World of Learning. 55th ed. Europa, 2004.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式
(2004). The World of Learning (55th ed.). Europa.
Chicagoスタイル(17版)引用形式The World of Learning. 55th ed. London: Europa, 2004.
MLA(9版)引用形式The World of Learning. 55th ed. Europa, 2004.