New dial system for telephones

Chicago citation style
New dial system for telephones. 1951-10-24. Retrieved from the Digital Public Library of America, http://search.lib.virginia.edu/catalog/uva-lib:2156400. (Accessed July 22, 2018.)
APA citation style
(1951-10-24) New dial system for telephones. Retrieved from the Digital Public Library of America, http://search.lib.virginia.edu/catalog/uva-lib:2156400
MLA citation style
Retrieved from the Digital Public Library of America <http://search.lib.virginia.edu/catalog/uva-lib:2156400>.
Note: These citations are programmatically generated and may be incomplete.