Etzler, J. A. (1833). The paradise within the reach of all men without labor, by powers of nature and machinery: An address to all intelligent men. In two parts. Etzler and Reinhold.
Chicago-referens (17:e uppl.)Etzler, J. A. The Paradise Within the Reach of All Men Without Labor, by Powers of Nature and Machinery: An Address to All Intelligent Men. In Two Parts. Pittsburgh, Pa.: Etzler and Reinhold, 1833.
MLA-referens (8:e uppl.)Etzler, J. A. The Paradise Within the Reach of All Men Without Labor, by Powers of Nature and Machinery: An Address to All Intelligent Men. In Two Parts. Etzler and Reinhold, 1833.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.