APA(7版)引用形式
Soars, L., & Soars, J. American Headway: Student Book 1. Oxford University.
Chicagoスタイル(17版)引用形式
Soars, Liz, , John Soars. American Headway: Student Book 1. Nueva York, EUA: Oxford University.
MLA(9版)引用形式
Soars, Liz, , John Soars. American Headway: Student Book 1. Oxford University.
警告: この引用は必ずしも正確ではありません.