MLA

Nier, Keith A, P. Jane Gale, and Alfred L Yergey. Encyclopedia of Mass Spectrometry, Volume 9 : Historical Perspectives, Part A : The Development of Mass Spectrometry. Elsevier, 2016.

APA

Nier, K. A, Gale, P. Jane, & Yergey, A. L. (2016). Encyclopedia of Mass Spectrometry, Volume 9 : Historical Perspectives, Part A : The Development of Mass Spectrometry. Elsevier.

Chicago

Nier, Keith A., P. Jane Gale, and Alfred L Yergey. Encyclopedia of Mass Spectrometry, Volume 9 : Historical Perspectives, Part A : The Development of Mass Spectrometry. : Elsevier, 2016.