Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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