Collier, G. (1990). Blue Bird Pumpkin: Saxophone Quartet: Es Alto Saxophone 1 ( opt. B Soprano Saxophone), Es Alto Saxophone 2, B Tenor Saxophone, Es Bariton Saxophon. advance music.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Collier, Graham. Blue Bird Pumpkin: Saxophone Quartet: Es Alto Saxophone 1 ( Opt. B Soprano Saxophone), Es Alto Saxophone 2, B Tenor Saxophone, Es Bariton Saxophon. Rottenburg a/N: advance music, 1990.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Collier, Graham. Blue Bird Pumpkin: Saxophone Quartet: Es Alto Saxophone 1 ( Opt. B Soprano Saxophone), Es Alto Saxophone 2, B Tenor Saxophone, Es Bariton Saxophon. advance music, 1990.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.