U.S.Chemical Safety and Hazard Investigation Board. Vapor cloud deflagration and fire (3 Killed, 4 Injured).
芝加哥风格引文U.S.Chemical Safety and Hazard Investigation Board. Vapor Cloud Deflagration and Fire (3 Killed, 4 Injured).
MLA引文U.S.Chemical Safety and Hazard Investigation Board. Vapor Cloud Deflagration and Fire (3 Killed, 4 Injured).
警告：这些引文格式不一定是100％准确.