APO. (1997). Productivity statistics: Productivity indexes and levels in APO member countries.
シカゴスタイル引用形APO. Productivity Statistics: Productivity Indexes and Levels in APO Member Countries. Asian Productivity Organization: Japan, 1997.
MLA引用形式APO. Productivity Statistics: Productivity Indexes and Levels in APO Member Countries. 1997.
警告: この引用は必ずしも正確ではありません.