Multi-volume work

Garrity, G.M. 2001-. Bergey's Manual of Systematic Bacteriology, Second Edition. Springer-Verlag, New York.

Volumes

1. Boone, D.R. & Castenholz, R.W. (eds.), 2001. Volume One. The Archaea and the Deeply Branching and Phototrophic Bacteria: [i]-xxi, 1-721.
2. Brenner, D.J., Krieg, N.R. & Staley, J.T. (eds.), 2005. Volume Two. The Proteobacteria: 3 parts.
3. De Vos, P., Garrity, G.M., Jones, D., Krieg, N.R., Ludwig, W., Rainey, F.A., Schleifer, K.-H. & Whitman, W.B. (eds.), 2009. Volume Three. The Firmicutes: [I]-XXVI, 1-1422.
4. Krieg, N.R., Staley, J.T., Brown, D.R., Hedlund, B.P., Paster, B.J., Ward, N.L., Ludwig, W. & Whitman, W.B. (eds.), 2010[2011]. Volume Four. The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes: [i]-xxvi, 1-949.
5. Goodfellow, M., Kämpfer, P., Busse, H.-J., Trujillo, M.E., Suzuki, K.-i., Ludwig, W. & Whitman, W.B. (eds.), 2012. Volume Five. The Actinobacteria: [i]-xxiv, 1-2083.

Original Classification (root)

([unranked]) procaryotes