United States. Federal Bureau of Investigation. (1998). Unidentified flying objects. Federal Bureau of Investigation.
Chicago Style (17th ed.) CitationUnited States. Federal Bureau of Investigation. Unidentified Flying Objects. [Washington, D.C.]: Federal Bureau of Investigation, 1998.
MLA (9th ed.) CitationUnited States. Federal Bureau of Investigation. Unidentified Flying Objects. Federal Bureau of Investigation, 1998.
Warning: These citations may not always be 100% accurate.