Popper, K. R. (1961). The logic of scientific discovery. New York: Science Edition,Inc.
Trích dẫn kiểu ChicagoPopper, Karl R. The Logic of Scientific Discovery. New York: Science Edition,Inc, 1961.
Deismireacht MLAPopper, Karl R. The Logic of Scientific Discovery. New York: Science Edition,Inc, 1961.
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