Cita APA (7a ed.)

Stade, H., Müller, H., Daiber, C., Müller, H., & Kürzinger, G. (1991). Erfurt. Bucher.

Cita Chicago Style (17a ed.)

Stade, Heinz, Hermann Müller, Claudia Daiber, Horst Müller, y Georg Kürzinger. Erfurt. München ; Berlin: Bucher, 1991.

Cita MLA (8a ed.)

Stade, Heinz, et al. Erfurt. Bucher, 1991.