(1842). Newspaper clipping, [Galvanic Battery Newspaper Testimonial], January 13, 1842. Philadelphia : Spirit of the Times.
Chicago-viite (17. p.)Newspaper Clipping, [Galvanic Battery Newspaper Testimonial], January 13, 1842. Philadelphia : Spirit of the Times, 1842.
MLA-viite (8. p.)Newspaper Clipping, [Galvanic Battery Newspaper Testimonial], January 13, 1842. Philadelphia : Spirit of the Times, 1842.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.