APA (7e ed.) Bronvermelding

Betz, F., & Holzwarth, C. H. (1933). A second German book. American book company.

Chicago (17e ed.) Bronvermelding

Betz, Frederick, en Charles Homer Holzwarth. A Second German Book. New York: American book company, 1933.

MLA (9e ed.) Bronvermelding

Betz, Frederick, en Charles Homer Holzwarth. A Second German Book. American book company, 1933.