Higgins, A. (1976). Boilers room questions and answers. Mc Graw - Hill.
シカゴスタイル引用形Higgins, Alex. Boilers Room Questions and Answers. New York: Mc Graw - Hill, 1976.
MLA引用形式Higgins, Alex. Boilers Room Questions and Answers. Mc Graw - Hill, 1976.
警告: この引用は必ずしも正確ではありません.