Bell, W. J. (1975). Tuba warm-ups and daily routine: For all tubas, trombones and baritones ; from the William J. Bell complete tuba method. Colin.
Chicago-Zitierstil (17. Ausg.)Bell, William J. Tuba Warm-ups and Daily Routine: For All Tubas, Trombones and Baritones ; from the William J. Bell Complete Tuba Method. New York, NY: Colin, 1975.
MLA-Zitierstil (8. Ausg.)Bell, William J. Tuba Warm-ups and Daily Routine: For All Tubas, Trombones and Baritones ; from the William J. Bell Complete Tuba Method. Colin, 1975.
警告：這些引文格式不一定是100％准確.