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Etzler, J[ohn] A[dolphus](1791?-1846?). Two Visions of J[ohn] A[dolphus] Etzler, (Author of the Paradise Within the Reach of All Men, By Powers of Nature and Machinery, and Other Writings Connected Therewith.) A Revelation of Futurity. Surrey, Eng.: The Concordium, 1844.

Etzler, J[ohn] A[dolphus](1791?-1846?). The Paradise within Reach of All Men, without Labour, by Powers of Nature and Machinery. An Address To All Intelligent Men. In Two Parts. Pittsburgh, PA: Etzler and Reinhold, 1833.