Cameron, S. (2008). Hemispheres 4: Workbook. Singapore: McGraw-Hill ESL/ELT.
シカゴスタイル引用形Cameron, Scott. Hemispheres 4: Workbook. Singapore: McGraw-Hill ESL/ELT, 2008.
MLA引用形式Cameron, Scott. Hemispheres 4: Workbook. Singapore: McGraw-Hill ESL/ELT, 2008.
警告: この引用は必ずしも正確ではありません.