- Adobe Acrobat files (3 files, indexed, 594-752 KB) at the Archive for the History of Economic Thought (Translated and edited by Harriet Martineau)
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- Paperback edition of Auguste Comte and Positivism, includes early writings plus the Cours de Philosophie Positive and the Systeme de politique positive (Transaction Publishers, 1998, 555 pg).
- Paperback edition of Introduction to Positive Philosophy (Hackett Pub Co, 1988).
All links verified on or after December 28, 2019