REFLECTION OF RESEARCH RESULTS IN THE FIELD OF SOCIAL, NATURAL AND TECHNICAL SCIENCES IN THE 20TH CENTURY (BASED ON MATERIALS OF SCIENTIFIC AND TECHNICAL DOCUMENTATION) - PDF (俄文)


版权所有 © Soldatova O.N., 2021

Creative Commons License
此作品已接受知识共享署名 4.0国际许可协议的许可
##common.cookie##