Kettrup, A. (1993). Analysis of hazardous substances in air. VCH Publishing.
芝加哥风格引文Kettrup, A. Analysis of Hazardous Substances in Air. Weinheim: VCH Publishing, 1993.
MLA引文Kettrup, A. Analysis of Hazardous Substances in Air. VCH Publishing, 1993.
警告：这些引文格式不一定是100％准确.