Popper, K. R. (1968). The logic of scientific discovery. London: Hutchinson.
Trích dẫn kiểu ChicagoPopper, Karl R. The Logic of Scientific Discovery. London: Hutchinson, 1968.
MLA引文Popper, Karl R. The Logic of Scientific Discovery. London: Hutchinson, 1968.
警告：這些引文格式不一定是100％准確.