Institution, 8. B. S. Approval testing of welders when welding procedure approval is not required.
芝加哥风格引文Institution, 8096 British Standards. Approval Testing of Welders When Welding Procedure Approval Is Not Required.
MLA引文Institution, 8096 British Standards. Approval Testing of Welders When Welding Procedure Approval Is Not Required.
警告：这些引文格式不一定是100％准确.