(1973). Reason and action in the transformation of the world ; Philosophy in the process of the scientific and technological revolution ; Knowledge and values in the scientific and technological era ; Structure and methods of contemporary scientific knowledge. Sofia Pr..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিReason and Action in the Transformation of the World ; Philosophy in the Process of the Scientific and Technological Revolution ; Knowledge and Values in the Scientific and Technological Era ; Structure and Methods of Contemporary Scientific Knowledge. Sofia: Sofia Pr., 1973.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিReason and Action in the Transformation of the World ; Philosophy in the Process of the Scientific and Technological Revolution ; Knowledge and Values in the Scientific and Technological Era ; Structure and Methods of Contemporary Scientific Knowledge. Sofia Pr., 1973.