TY - RPRT TI - Examination of failed six inch cast iron pipe natural gas main, Brooklyn Union Gas Company, Queens County, New York AU - Christ, Bruce W AU - Shives, T Robert PY - 1976 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 76-1121 DO - 10.6028/NBS.IR.76-1121 ER -