ScienceDirect (Online service), Ferrer, I., & Thurman, E. M. (2013). Advanced techniques in gas chromatography-mass spectrometry for environmental chemistry. Elsevier.
Chicago Style (17th ed.) CitationScienceDirect (Online service), Imma Ferrer, and E. M. Thurman. Advanced Techniques in Gas Chromatography-mass Spectrometry for Environmental Chemistry. Oxford, UK: Elsevier, 2013.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Advanced Techniques in Gas Chromatography-mass Spectrometry for Environmental Chemistry. Elsevier, 2013.
Warning: These citations may not always be 100% accurate.