Cita APA (7th ed.)

Ployhar, J., & Weber, F. (1969). French horn student: Level one (Elementary). Belwin.

Cita Chicago (17th ed.)

Ployhar, James, i Fred Weber. French Horn Student: Level One (Elementary). Miami, FL: Belwin, 1969.

Cita MLA (9th ed.)

Ployhar, James, i Fred Weber. French Horn Student: Level One (Elementary). Belwin, 1969.