Costin, C. (2019). The global learning crisis. Institutional Knowledge at Singapore Management University.
Chicago Style CitationCostin, Claudia. The Global Learning Crisis. Institutional Knowledge at Singapore Management University, 2019.
MLA引文Costin, Claudia. The Global Learning Crisis. Institutional Knowledge at Singapore Management University, 2019.
警告：這些引文格式不一定是100％准確.