00381nam a22001457a 4500003000500000005001700005008004100022020001800063040000600081082001700087100001700104245007800121260002700199300000900226CEME20210628203045.0210419b        xxu||||| |||| 00| 0 eng d  a0-419-14800-0  c.  a683.88 JON'A  aJones, H.R.N  aDomestic gas bunner design ,the application of combustion principles - 10  aNEWYORKbBRITISHc1989  a189P