Book on Bacterial Systematics?

[DAILEYD at LYNX.APSU.EDU]

Microbiology Newsgroup

I have been asked to find THE book on Bacterial
Systematics for the University library.  The 
library does not have Bergey's Manual of Systematic 
Bacteriology but I am not sure that is the best book
for us to purchase. At this point in time we are
limited to a single purchase so I am asking for some
imput on what would be the wisest choice.

  Thanks in advance for your help.

Don C. Dailey		DAILEYD at LYNX.APSU.EDU
Assoc. Prof. of Biology
Austin Peay State University
Clarksville, TN 37044