ScienceDirect (Online service), Frei, R. W., & Zech, K. (1989). Selective sample handling and detection in high-performance liquid chromatography. Elsevier.
Chicago Style (17th ed.) CitationScienceDirect (Online service), R. W. Frei, and K. Zech. Selective Sample Handling and Detection in High-performance Liquid Chromatography. Amsterdam ; New York: Elsevier, 1989.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Selective Sample Handling and Detection in High-performance Liquid Chromatography. Elsevier, 1989.
Warning: These citations may not always be 100% accurate.