Wings of the grasses :
for voice and oboe (or other melody instrument) /
words by Menna Elfyn ; music by Hilary Tann.
APA Citation
Tann, H., Elfyn, M. (2004). Wings of the grasses: for voice and oboe (or other melody instrument). [New York]: Oxford University Press.
MLA Citation
Tann, Hilary, and Menna Elfyn. Wings of the Grasses: for Voice And Oboe (or Other Melody Instrument). [New York]: Oxford University Press, 2004.
Warning: These citations may not always be complete (especially for serials).