Chabran, H. R. (1986). The young Unamuno: His intellectual development in positivism and Darwinism (1880-1884). University Microfilms International.
Cita Chicago Style (17a ed.)Chabran, Harry Rafael. The Young Unamuno: His Intellectual Development in Positivism and Darwinism (1880-1884). Ann Arbor: University Microfilms International, 1986.
Cita MLA (9a ed.)Chabran, Harry Rafael. The Young Unamuno: His Intellectual Development in Positivism and Darwinism (1880-1884). University Microfilms International, 1986.
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