English Language Services & English language services. (1964). English 900.: Book three. Macmillan.
Chicagoスタイル(17版)引用形式English Language Services , English language services. English 900.: Book Three. London: Macmillan, 1964.
MLA(9版)引用形式English Language Services , English language services. English 900.: Book Three. Macmillan, 1964.
警告: この引用は必ずしも正確ではありません.