APA (7th ed.) Citation

(1986). Countdown?: Grundkurse, Leistungskurse. Langenscheidt-Longman.

Chicago Style (17th ed.) Citation

Countdown?: Grundkurse, Leistungskurse. München: Langenscheidt-Longman, 1986.

MLA (9th ed.) Citation

Countdown?: Grundkurse, Leistungskurse. Langenscheidt-Longman, 1986.

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