APA (7th ed.) Citation

May, K., & May, K. (1987). Old Surehand. Verlag Neues Leben.

Chicago Style (17th ed.) Citation

May, Karl, and Karl May. Old Surehand. Berlin: Verlag Neues Leben, 1987.

MLA (8th ed.) Citation

May, Karl, and Karl May. Old Surehand. Verlag Neues Leben, 1987.