APA (7th ed.) Citation

Ostling, A. E. (1947). Trio album for trombones. Belwin.

Chicago Style (17th ed.) Citation

Ostling, Acton Eric. Trio Album for Trombones. New York: Belwin, 1947.

MLA (9th ed.) Citation

Ostling, Acton Eric. Trio Album for Trombones. Belwin, 1947.