Popkova, E. G., & Sergi, B. S. (2020). The 21st Century from the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing.
Παραπομπή Chicago StylePopkova, Elena G., και Bruno S. Sergi. The 21st Century From the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing, 2020.
Παραπομπή MLAPopkova, Elena G., και Bruno S. Sergi. The 21st Century From the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing, 2020.
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