APA (7th ed.) Citation

(1987). Mario Derra. [Selbstverlag].

Chicago Style (17th ed.) Citation

Mario Derra. [Bürstadt-Bobstadt]: [Selbstverlag], 1987.

MLA (9th ed.) Citation

Mario Derra. [Selbstverlag], 1987.

Warning: These citations may not always be 100% accurate.