APA (7th ed.) Citation

Schumacher, A., & Schumacher, B. (1987). Double Feature: Kriminalroman (Orig.-Ausg.). Heyne.

Chicago Style (17th ed.) Citation

Schumacher, Astrid, and Bernt Schumacher. Double Feature: Kriminalroman. Orig.-Ausg. München: Heyne, 1987.

MLA (9th ed.) Citation

Schumacher, Astrid, and Bernt Schumacher. Double Feature: Kriminalroman. Orig.-Ausg. Heyne, 1987.

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