Howard-Williams, D., Tomalin, M., & Watcyn-Jones, P. Instant lessons 1. Elementary.
Chicagoスタイル(17版)引用形式Howard-Williams, Deirdre, Mary Tomalin, , Peter Watcyn-Jones. Instant Lessons 1. Elementary.
MLA(8版)引用形式Howard-Williams, Deirdre, et al. Instant Lessons 1. Elementary.
警告: この引用は必ずしも正確ではありません.