Lava flows down a slope following an eruption of Mount Etna. U.S. Navy and Marine Corps personnel are in the area in an attempt to stem the volcano's flow and minimize destruction to the town of Zafferana Etnea as part of Operation Hot Rock. The military personnel are using 8,000-pound concrete blocks in an effort to divert the flow of lava away from the town

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Lava flows down a slope following an eruption of Mount Etna. U.S. Navy and Marine Corps personnel are in the area in an attempt to stem the volcano's flow and minimize destruction to the town of Zafferana Etnea as part of Operation Hot Rock. The military personnel are using 8,000-pound concrete blocks in an effort to divert the flow of lava away from the town. 1992-04-15. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6479813. (Accessed July 23, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1992-04-15) Lava flows down a slope following an eruption of Mount Etna. U.S. Navy and Marine Corps personnel are in the area in an attempt to stem the volcano's flow and minimize destruction to the town of Zafferana Etnea as part of Operation Hot Rock. The military personnel are using 8,000-pound concrete blocks in an effort to divert the flow of lava away from the town. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6479813
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6479813>.
Note: These citations are programmatically generated and may be incomplete.