Willis, H. (1971). Basic usage, vocabulary, and composition. Holt Rinehart and Winston.
Chicagoスタイル(17版)引用形式Willis, Hulon. Basic Usage, Vocabulary, and Composition. New York: Holt Rinehart and Winston, 1971.
MLA(9版)引用形式Willis, Hulon. Basic Usage, Vocabulary, and Composition. Holt Rinehart and Winston, 1971.
警告: この引用は必ずしも正確ではありません.