Britain), I. o. G. E. (. (1986). Use of breathing apparatus and other respiratory protective equipment in gas transmission and distribution. London : Institution of Gas Engineers.
Chicago-čujuhus (17. p.)Britain), Institution of Gas Engineers (Great. Use of Breathing Apparatus and Other Respiratory Protective Equipment in Gas Transmission and Distribution. London : Institution of Gas Engineers, 1986.
MLA-čujuhus (9. p.)Britain), Institution of Gas Engineers (Great. Use of Breathing Apparatus and Other Respiratory Protective Equipment in Gas Transmission and Distribution. London : Institution of Gas Engineers, 1986.
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