Richards, J. C. (1991). Interchange 2: Student's Book. Cambridge University Press.
Chicagoスタイル(17版)引用形式Richards, Jack C. Interchange 2: Student's Book. Cambridge, Reino Unido: Cambridge University Press, 1991.
MLA(9版)引用形式Richards, Jack C. Interchange 2: Student's Book. Cambridge University Press, 1991.
警告: この引用は必ずしも正確ではありません.