Washington Natural Gas Company, ca. 1963

Chicago citation style
Dudley, Hardin & Yang, Inc.. Washington Natural Gas Company, ca. 1963. ca. 1963. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/6093. (Accessed October 18, 2018.)
APA citation style
Dudley, Hardin & Yang, Inc., (ca. 1963) Washington Natural Gas Company, ca. 1963. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/6093
MLA citation style
Dudley, Hardin & Yang, Inc.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/social/id/6093>.
Note: These citations are programmatically generated and may be incomplete.