Tohutoro APA (7th ed.)
Parvin, P. (2010). Karl Popper. Continuum.
Tohutoru Kātū Chicago (17th ed.)
Parvin, Philip. Karl Popper. New York: Continuum, 2010.
Tohutoro MLA (9th ed.)
Parvin, Philip. Karl Popper. Continuum, 2010.
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