At the Boar's Head :
a musical interlude in one act, op. 42 ;
the libretto taken from Shakespeare's King Henry IV ; the music founded on old English melodies by Gustav Holst ; pianoforte arrangement by Vally Lasker.

APA Citation

Holst, G., Lasker, V., Shakespeare, W. (1925). At the Boar's Head: a musical interlude in one act, op. 42. London: Novello .

MLA Citation

Holst, Gustav, 1874-1934, Vally Lasker, and William Shakespeare. At the Boar's Head: a Musical Interlude In One Act, Op. 42. London: Novello , 1925.

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