Opening signal :
for brass, percussion, and piccolos (1994) /
Oliver Knussen.

APA Citation

Knussen, O. (1994). Opening signal: for brass, percussion, and piccolos (1994). [London]: Faber Music.

MLA Citation

Knussen, Oliver. Opening Signal: for Brass, Percussion, And Piccolos (1994). [London]: Faber Music, 1994.

Warning: These citations may not always be complete (especially for serials).