[en] [Gutenberg 46763] • Michael Faraday, Man of Science Project Gutenberg
[en] [Gutenberg 47396] • Michael Faraday / Third Edition, with Portrait HardPress Publishing
[pt] Ensaios De Ralph Waldo Emerson - Poesia E Imaginação Editora Dracaena
[en] [Gutenberg 46763] • Michael Faraday, Man of Science Project Gutenberg
[en] [Gutenberg 47396] • Michael Faraday / Third Edition, with Portrait HardPress Publishing
[pt] Ensaios De Ralph Waldo Emerson - Poesia E Imaginação Editora Dracaena