Frank, M. Modern English: A practical reference guide. Englewood Cliffs, N.J: Prentice-Hall.
シカゴスタイル引用形Frank, Marcella. Modern English: A Practical Reference Guide. Englewood Cliffs, N.J: Prentice-Hall.
MLA引用形式Frank, Marcella. Modern English: A Practical Reference Guide. Englewood Cliffs, N.J: Prentice-Hall.
警告: この引用は必ずしも正確ではありません.