Popkova, E. G., & Sergi, B. S. (2020). The 21st Century from the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing.
استشهاد بنمط شيكاغوPopkova, Elena G., و Bruno S. Sergi. The 21st Century From the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing, 2020.
MLA استشهادPopkova, Elena G., و Bruno S. Sergi. The 21st Century From the Positions of Modern Science: Intellectual, Digital and Innovative Aspects. Springer International Publishing, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.