Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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