APA (7th ed.) Citation

Martin, F., Martin, F., Martin, F., & Martin, F. (1988). Drei leichte Klavierstücke: = Three easy piano pieces. Universal-Ed.

Chicago Style (17th ed.) Citation

Martin, Frank, Frank Martin, Frank Martin, and Frank Martin. Drei Leichte Klavierstücke: = Three Easy Piano Pieces. Zürich: Universal-Ed, 1988.

MLA (9th ed.) Citation

Martin, Frank, et al. Drei Leichte Klavierstücke: = Three Easy Piano Pieces. Universal-Ed, 1988.