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- Spencer, Herbert, 1820-1903
Spencer, Herbert, 1820-1903 — Audiobooks

Know the Truth: A Critique on the Hamiltonian Theory of Limitation
by Jesse Henry Jones

Herbert Spencer
by J. Arthur (John Arthur) Thomson

Pioneers of Evolution from Thales to Huxley
by Edward Clodd

Socialism and Modern Science (Darwin, Spencer, Marx)
by Enrico Ferri

Spencer's Philosophy of Science
by C. Lloyd (Conwy Lloyd) Morgan

Auguste Comte et Herbert Spencer
by E. de (Eugène) Roberty

Socialismo y ciencia positiva (Darwin-Spencer-Marx)
by Enrico Ferri