Lua APA (7ú heag.)

Joplin, S., & Sauer, R. (1978). Four rags for four trombones. Wimbledon Music.

Lua i Stíl Chicago (17ú heag.)

Joplin, Scott, agus Ralph Sauer. Four Rags for Four Trombones. Century City, Calif: Wimbledon Music, 1978.

Lua MLA (9ú heag.)

Joplin, Scott, agus Ralph Sauer. Four Rags for Four Trombones. Wimbledon Music, 1978.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.