United States. National Transportation Safety Board. (1998). Brittle-like cracking in plastic pipe for gas service. National Transportation Safety Board.
Chicago Style (17th ed.) CitationUnited States. National Transportation Safety Board. Brittle-like Cracking in Plastic Pipe for Gas Service. Washington, D.C.: National Transportation Safety Board, 1998.
MLA (9th ed.) CitationUnited States. National Transportation Safety Board. Brittle-like Cracking in Plastic Pipe for Gas Service. National Transportation Safety Board, 1998.
Warning: These citations may not always be 100% accurate.