Pooper, K. R. (1961). The poverty of historicism. Routledge & kegan Paul.
Tohutoru Kātū Chicago (17th ed.)Pooper, Karl R. The Poverty of Historicism. Londres: Routledge & kegan Paul, 1961.
Tohutoro MLA (9th ed.)Pooper, Karl R. The Poverty of Historicism. Routledge & kegan Paul, 1961.
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