APA-viite (7. p.)

Mills, G., Reed, L., & Kerr, A. (1969). It's not unusual: For mixed chorus (SATB) with piano and optional percussion and string bass. Leeds Music Limited.

Chicago-viite (17. p.)

Mills, Gordon, Les Reed, ja Anita Kerr. It's Not Unusual: For Mixed Chorus (SATB) with Piano and Optional Percussion and String Bass. London: Leeds Music Limited, 1969.

MLA-viite (9. p.)

Mills, Gordon, et al. It's Not Unusual: For Mixed Chorus (SATB) with Piano and Optional Percussion and String Bass. Leeds Music Limited, 1969.