YAM, P. (2012). PRIMARY LEVEL COMPLETE VOCABULARY (1st.). SAP GROUP.
Chicagoスタイル(17版)引用形式YAM, PETER. PRIMARY LEVEL COMPLETE VOCABULARY. 1st. SINGAPORE: SAP GROUP, 2012.
MLA(9版)引用形式YAM, PETER. PRIMARY LEVEL COMPLETE VOCABULARY. 1st. SAP GROUP, 2012.
警告: この引用は必ずしも正確ではありません.