I found this by its ISBN, the folks at Amazon.com appear to have fluffed on the title! (Which concludes "Diagnostic criteria for research", important in distinguishing it from the "Clinical descriptions and Diagnostic Guidelines" edition) Whilst not essential, this book nicely complements the indispensable ICD-10 "Clinical descriptions and diagnostic guidelines", to which it adds some specifics for those engaged in research in this area. If as a clinician you find the ICD-10 adequate, this is not a necessary addition. I obtained my copy as a student mental health nurse, and as time progressed it has proved its worth alongside the aforementioned main "Chapter V" text, particularly in my current role as a nurse lecturer. Not a must-have but certainly a nice-to-have!
PS: In the U.S. the DSM-IV is more likely to be what you require in this department. Still no harm to check out how the rest of the world has classified mental & behavioural disorder! :)