APA (7th ed.) Citation

Betz, F., & Price, W. R. (1926). A first German book. American book company.

Chicago Style (17th ed.) Citation

Betz, Frederick, and William Raleigh Price. A First German Book. New York: American book company, 1926.

MLA (9th ed.) Citation

Betz, Frederick, and William Raleigh Price. A First German Book. American book company, 1926.