Geng, G., Smith, P., & Black, P. (2020). The Challenge of Teaching. 1st ed. 2017. Springer Singapore.
Čikaški stil citiranjaGeng, Gretchen, Pamela Smith, i Paul Black. The Challenge of Teaching. 1st Ed. 2017. Springer Singapore, 2020.
MLA način citiranjaGeng, Gretchen, Pamela Smith, i Paul Black. The Challenge of Teaching. 1st Ed. 2017. Springer Singapore, 2020.
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