Procter-Gregg, Humphrey.

Gloria in D major for solo voices, mixed chorus and orchestra vocal score by: Procter-Gregg, Humphrey.; Vivaldi, Antonion. (書目-語言資料,印刷品)

La forza del destino (the force of destiny) an opera in four acts vocal scor by: Verdi, Giuseppe (1813-1901.); Verdi, Giuseppe; Procter-Gregg, Humphrey.; Piave, Francesco Maria. (書目-語言資料,印刷品)

La clemenza di tito (titus)an opera in two acts vocal score with complete se by: Mozart, Wolfgang Amadeus (1756-1791.); Mozart, Wolfgang Amadeus; Mazzola, Caterino.; Procter-Gregg, Humphrey.; 莫札特 (書目-語言資料,印刷品)

Manon lescaut an opea in four acts vocal score Italian and English by: Puccini, Giacomo (1858-1924.); Puccini, Giacomo; Procter-Gregg, Humphrey.; 蒲契尼 (書目-語言資料,印刷品)

Un Ballo in maschera (a masked ball) opera in three acts vocal score by: Verdi, Giuseppe (1813-1901.); Procter-Gregg, Humphrey.; Somma, Antonio.; Verdi, Giuseppe (書目-語言資料,印刷品)