Citazione APA

Popper, K. R. (1968). The logic of scientific discovery ([2d Harper torchbook ed.].). Harper & Row.

Stile di citazione Chicago

Popper, Karl R. The Logic of Scientific Discovery. [2d Harper torchbook ed.]. New York: Harper & Row, 1968.

Citazione MLA

Popper, Karl R. The Logic of Scientific Discovery. [2d Harper torchbook ed.]. Harper & Row, 1968.