LEXIS NEXIS. The Occupational Safety, Health and Working Conditions Code 2020. Lexis Nexis.
芝加哥风格引文LEXIS NEXIS. The Occupational Safety, Health and Working Conditions Code 2020. Lexis Nexis.
MLA引文LEXIS NEXIS. The Occupational Safety, Health and Working Conditions Code 2020. Lexis Nexis.
警告：这些引文格式不一定是100％准确.