Green Book
From Mass Spec Terms

The IUPAC Quantities, Units and Symbols in Physical Chemistry
IUPAC. Quantities, Units and Symbols in Physical Chemistry, 3rd ed. (the Green Book). Prepared for publication by E. R. Cohen, T. Cvita, J. G. Frey, B. Holmstr??m, K. Kuchitsu, R. Marquardt, I. Mills, F. Pavese, M. Quack, J. Stohner, H. L. Strauss, M. Takami, A. J. Thor, RSC Publishing, Cambridge, UK (2007).