Location: Philadelphia, Pennsylvania - Date: October 1961 - Incident Number: [BLANK]

Chicago citation style
Department of Defense. Department of the Air Force. Air Force Systems Command. Foreign Technology Division. Project Blue Book Office. (7/1/1961 - 12/17/1969). Location: Philadelphia, Pennsylvania - Date: October 1961 - Incident Number: [BLANK]. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/28995236. (Accessed August 20, 2018.)
APA citation style
Department of Defense. Department of the Air Force. Air Force Systems Command. Foreign Technology Division. Project Blue Book Office. (7/1/1961 - 12/17/1969), Location: Philadelphia, Pennsylvania - Date: October 1961 - Incident Number: [BLANK]. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/28995236
MLA citation style
Department of Defense. Department of the Air Force. Air Force Systems Command. Foreign Technology Division. Project Blue Book Office. (7/1/1961 - 12/17/1969). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/28995236>.
Note: These citations are programmatically generated and may be incomplete.