APA aipamena

Popper, K. R. (1961). The poverty of historicism. New York: Harper & Row.

Chicago Style aipamena

Popper, Karl Raimund. The Poverty of Historicism. New York: Harper & Row, 1961.

MLA aipamena

Popper, Karl Raimund. The Poverty of Historicism. New York: Harper & Row, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.