Birtwistle,Harrison,  Sir,  1934- <br/><br/>
Silbury air / 
Harrison Birtwistle. 
 - London :  Universal,  1979. 
 - 1 full score (52 p.) ;  44 cm. 
<br/><br/> Study score. 
<br/><br/><br/>Introductory notes in English and German by the composer. 
<br/><br/><label>Publisher. No.: </label>UE16141L  Universal.