Earl , B., & Wilford L . D . R. (1998). Revision for chemistry GCSE with answers. John murray publishers.
シカゴスタイル引用形Earl , B., , Wilford L . D . R. Revision for Chemistry GCSE with Answers. London: John murray publishers, 1998.
MLA引用形式Earl , B., , Wilford L . D . R. Revision for Chemistry GCSE with Answers. John murray publishers, 1998.
警告: この引用は必ずしも正確ではありません.