Crumb, G., & Garcia Lorca, F. (1970). Ancient voices of children: [a cycle of songs on texts by George Lorca] for soprano, boy soprano, oboe, mandolin, harp, electric piano [and] percussion. C.F. Peters.
Chicago Style (17th ed.) CitationCrumb, George, and Federico Garcia Lorca. Ancient Voices of Children: [a Cycle of Songs on Texts by George Lorca] for Soprano, Boy Soprano, Oboe, Mandolin, Harp, Electric Piano [and] Percussion. New York: C.F. Peters, 1970.
MLA (9th ed.) CitationCrumb, George, and Federico Garcia Lorca. Ancient Voices of Children: [a Cycle of Songs on Texts by George Lorca] for Soprano, Boy Soprano, Oboe, Mandolin, Harp, Electric Piano [and] Percussion. C.F. Peters, 1970.
Warning: These citations may not always be 100% accurate.