APA (7th ed.) Citation

Watson, H. W., & McGuinn, S. (1978). Deutsch im Büro =: German in the office (New ed.). Longman.

Chicago Style (17th ed.) Citation

Watson, Hilde W., and S. McGuinn. Deutsch Im Büro =: German in the Office. New ed. London: Longman, 1978.

MLA (8th ed.) Citation

Watson, Hilde W., and S. McGuinn. Deutsch Im Büro =: German in the Office. New ed. Longman, 1978.