Fabry, H. (1989). zz - qwm. Kohlhammer.
Cita Chicago (17th ed.)Fabry, Heinz-Josef. Zz - Qwm. Stuttgart [u.a.]: Kohlhammer, 1989.
Cita MLA (8th ed.)Fabry, Heinz-Josef. Zz - Qwm. Kohlhammer, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.