Joplin, S., & Sauer, R. (1978). Four rags for four trombones. Wimbledon Music.
Dyfyniad Arddull ChicagoJoplin, Scott, and Ralph Sauer. Four Rags for Four Trombones. Century City, Calif: Wimbledon Music, 1978.
Dyfyniad MLAJoplin, Scott, and Ralph Sauer. Four Rags for Four Trombones. Wimbledon Music, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.