Smith, R. B. Reformers seek to lighten recordkeeping burden. Occupational health & safety.
芝加哥风格引文Smith, R. Blake. "Reformers Seek to Lighten Recordkeeping Burden." Occupational Health & Safety .
MLA引文Smith, R. Blake. "Reformers Seek to Lighten Recordkeeping Burden." Occupational Health & Safety, .
警告：这些引文格式不一定是100％准确.