APA (7e ed.) Bronvermelding

Guenther, R. (1982). First of practical studies for flute. Belwin Mills.

Chicago (17e ed.) Bronvermelding

Guenther, Ralph. First of Practical Studies for Flute. New York: Belwin Mills, 1982.

MLA (8e ed.) Bronvermelding

Guenther, Ralph. First of Practical Studies for Flute. Belwin Mills, 1982.