Cita APA (7th ed.)

Friedlaender, A. (1989). German in three months. Hugo's Language Books Ltd..

Cita Chicago (17th ed.)

Friedlaender, Ann. German in Three Months. Britain: Hugo's Language Books Ltd., 1989.

Cita MLA (9th ed.)

Friedlaender, Ann. German in Three Months. Hugo's Language Books Ltd., 1989.