Gas attack

Chicago citation style
Gas attack. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/WWI/id/71. (Accessed October 23, 2019.)
APA citation style
Gas attack. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/WWI/id/71
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm15138.contentdm.oclc.org/cdm/ref/collection/WWI/id/71>.
Note: These citations are programmatically generated and may be incomplete.