Bergey's Manual of Systematic Bacteriology: Volume 5: The Actinobacteria (Bergey's Manual of Systematic Bacteriology (Springer-Verlag))
Includes a revised taxonomic outline for the Actinobacteria or the high G+C Gram positives is based upon the SILVA project as well as a description of greater than 200 genera in 49 families. Includes many medically and industrially important taxa.