Cita APA (7th ed.)

Popper, K. R. (1961). The poverty of historicism. Ark Paperbacks.

Cita Chicago (17th ed.)

Popper, Karl Raimund. The Poverty of Historicism. London: Ark Paperbacks, 1961.

Cita MLA (9th ed.)

Popper, Karl Raimund. The Poverty of Historicism. Ark Paperbacks, 1961.