Cita APA (7a ed.)

Zeiher, C., & Bertelsons, R. (1995). Mach mit!: Schülerbuch. Europ. Language Inst.

Cita Chicago Style (17a ed.)

Zeiher, Charlotte, y Roswita Bertelsons. Mach Mit!: Schülerbuch. Recanati: Europ. Language Inst, 1995.

Cita MLA (9a ed.)

Zeiher, Charlotte, y Roswita Bertelsons. Mach Mit!: Schülerbuch. Europ. Language Inst, 1995.