| Adding to the above, Rod Gervais' book is excellent for how to build it right. Long's Architectural Acoustics is, well it is recommended by Leo Beranek. Going more into theory and physics is Kuttruff's Acoustics.
For more on applied studio acoustics the BBC RD Reports and archives are a goldmine of information. Particularly Rose's Guide to Acoustic Practice. Plus they are free on the internet.
Referentially,
Andre |